Explanation:
The nucleic acids are comprised of smaller units called nucleotides and function as storage for the body’s genetic information. These monomers include ribonucleic acid (RNA) or deoxyribonucleic acid (DNA). They differ from other macromolecules since they don’t provide the body with energy. They exist solely to encode and protein synthesis.
Basic makeup: C, H, O, P; they contain phosphate group 5 carbon sugar does nitrogen bases which may contain single to double bond ring.
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Answer:
nucleotides
Explanation:
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According to reports by National Public Radio, sales of products labeled Non-GMO have more than doubled over the past two years, jumping from $7 billion to $16 billion. At the same time, organic foods have also been gaining in popularity, though at a much slower rate.
What do you know about GMO's?
A) All organic foods contain GMO ingredients, as set forth in USDA guidelines.
B) 85% of the U.S. corn is GMO; modified to be resistant to herbicides.
C)The U.S. does not require that GMO foods be labelled as such.
D) Example of GMO: cross-pollinating plants for a desired trait.
E) Technology now allows us to transfer genes between organisms of different species and even kingdoms.
F) Extensive testing has been conducted on GMO-foods to ensure that there will be no adverse allergic reactions or health risks.
Answer:
B,C,E
Explanation:
Answer:
B) 85% of the U.S. corn is GMO; modified to be resistant to herbicides
c)The U.S. does not require that GMO foods be labelled as such.
E)Technology now allows us to transfer genes between organisms of different species and even kingdoms.
Explanation:
which activity might a scientist do as part of the scientific process? apex
A.) Make a testable hypothesis
B.) Hide experimental data
C.) Make unsupported claims
D.) Answer ethical questions
Sequence the levels of organization in multicellular organisms
Final answer:
The levels of organization in multicellular organisms include cells, tissues, organs, organ systems, and organisms.
Explanation:
The levels of organization in multicellular organisms are as follows:
Cells: Cells are the basic structural and functional units of living organisms. They are organized into tissues.
Tissues: Tissues are groups of cells that work together to perform a specific function. They are organized into organs.
Organs: Organs are composed of different tissues and perform specific functions in the body. They are organized into organ systems.
Organ Systems: Organ systems are groups of organs that work together to perform complex functions in the body.
Organisms: Organisms are complete living beings made up of multiple organ systems.
we cannot see properly when we come out in dark room from a bright place . why
Answer:
Because it takes some time to adapt to the new level of light in the environment
Explanation:
The pupil of our eye functions to control the light that enters our eye by contracting or relaxing.When we are in bright place, the pupil contracts to limit the light in our eye lens. When we move to a dark room, the pupil takes some time to expand and due to this only limited amount of light enters our eye lens which might not be enough to see properly in the dark place. Unlike human beings some animals have more effective pupil with which they can stalk their prey in low light too.Our inability to see when moving from a bright place to a dark room is due to the time it takes for our eyes to adjust from cone to rod activity, which is better suited for low-light conditions. This adjustment process leads to a temporary period of impaired vision known as dark adaptation.
We cannot see properly when we come out of a bright room into a dark one because our eyes need time to adjust to the lower levels of light. In a bright environment, our vision is dominated by cone activity, providing us with color vision and sharpness of sight. When we move into a darker environment, our eyes gradually switch to relying more on rod activity.
Rods are more sensitive to light but provide no color information and are more effective in low light. The transition from a well-lit area where cones are active, into a dark area where rods become more active, takes time, causing a temporary inability to see in the dark. This also explains why animals like owls and bats can see in what appears to be pitch darkness to us; their eyes are either more sensitive to light or adapted to different wavelengths, allowing them to see with less light than humans require.
Ultimately, what is experienced as 'darkness' is a limitation within our own visual system rather than a complete absence of light. With time, our eyes adapt, and we begin to see better in the dark theater or room, though it may never appear as bright to us as the outside because our perception of brightness is not directly proportional to the number of photons received.
How does the cell theory demonstrate this definition of theory
Final answer:
The cell theory is a widely accepted scientific theory in biology that explains the cellular basis of all living organisms and how new cells arise from existing ones. It serves as a prime example of a scientific theory as it integrates all known data about cellular life and remains unrefuted by evidence.
Explanation:
The cell theory exemplifies the definition of a theory in science by offering a broad and widely accepted explanation for a variety of biological phenomena. This theory states that all living organisms are composed of cells, which are the smallest units of structure and function, and that new cells are always the result of the division of pre-existing cells. No empirical evidence has been found to refute this theory, thus solidifying its status within the scientific community. As a critical component of biology, the cell theory aligns with the scientific definition of a theory since it incorporates all known information about the cellular basis of life and has continually withstood rigorous testing and examination.
Cross a bay stallion with a cream mare. List all offspring phenotypes as a percentage
Answer:
buckskin(The horse has a tan or gold colored coat with black points (mane, tail, and lower legs))palomino(gold coat and white mane and tail, the degree of whiteness can vary from bright white to yellow)smoky black(coat is either black or a few shades lighter than true black)Explanation:
A bay horse is a black-based animal with the agouti gene, which is the modifier that limits the horse’s black color to its points (legs, mane, tail, eartips). The black-based horse can be either homozygous for the extension allele (two copies black – EE) or heterozygous (one copy black, one copy red – Ee). Because black is dominant, an Ee horse will appear black-based.
A horse can carry the agouti gene whether it is black or red (this is why a black horse bred to a chestnut or sorrel horse may produce a bay). It is impossible to tell phenotypically (from looking at the horse) if it is homozygous or heterozygous.
This means that when you cross a cremello (a sorrel/chestnut with two copies of the cream gene) on a bay (black with agouti), you can get buckskin, palomino or smoky black, depending on the horses’ exact gene combination.
references:
wikipedia.comAnswer:
buckskin(The horse has a tan or gold colored coat with black points (mane, tail, and lower legs))
palomino(gold coat and white mane and tail, the degree of whiteness can vary from bright white to yellow)
smoky black(coat is either black or a few shades lighter than true black)
Explanation:
the character having curly hair is dominant and straight hair is recessive ,why?
In genetics, curly hair is dominant over straight hair due to the interaction of alleles. The dominant allele for curly hair will 'override' the recessive allele for straight hair. We can predict genetic inheritance using tools like Punnett squares.
Explanation:The question pertains to genetic dominance, a concept in the field of genetics. Dominance in genetics is the phenomenon where one variant of a gene, called an allele, conceals the presence of a different variant at the same gene locus. For the case of hair type, naturally curly hair is dominant over straight hair because of the effect of the specific gene product, or protein, that the dominant allele produces.
In genetic terminology, we refer to having two of the same allele (for instance straight hair or 'bb') as homozygous, and having one of each (curly hair and straight hair, or 'Bb') as heterozygous. When it comes to dominant traits like curly hair, they will be visibly expressed even if only one parent gene has the dominant allele. Thus, whether an individual has the alleles 'Bb' or 'BB', they will have curly hair due to the dominance of the allele for curly hair.
Using a simple tool called a Punnett square, we are able to predict how genes will interact in producing offspring. By inputting the parental curly and straight hair alleles, it can visually show the odds of expressing a certain trait. But the fact remains that the dominant curly hair trait will be expressed over the recessive straight hair trait because of the natural workings of inheritance and genetics as determined by Mendel's law of dominance.
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describe what each type of survivorship show ( type1, type2 ,and type3)
Answer:
There are three types of survivorships:
Type 1: Type 1 survivorship includes organisms which have high chances of surviving through the early and middle stages of life. Their population tends to decline in the old age. For example, humans
Type 2: Type 2 survivorship contains organisms which have a constant mortality rate. The chances of an individual to die are independent of their age.For example, birds
Type 3: Type 3 survivorship includes organisms which have a rapid death rate during the early stages and only a few organisms survive till adulthood.
There are three types of survivorships:
Type 1: Type 1 survivorship includes organisms which have high chances of surviving through the early and middle stages of life. Their population tends to decline in the old age. For example, humans
Type 2: Type 2 survivorship contains organisms which have a constant mortality rate. The chances of an individual to die are independent of their age.For example, birds
Type 3: Type 3 survivorship includes organisms which have a rapid death rate during the early stages and only a few organisms survive till adulthood.
Mitosis and meiosis 1 comparison of all phases
Answer and Explanation:
Mitosis is the type of division that occurs in the general body cells resulting in growth while meiosis is the process that occurs during the formation of sex cells. Mitosis results in two daughter that are identical to one another and to the parent cell. In meisosis there is crossing over during prophase I.
Tony Loves to swim everyday what is Tony a noun verb adjective subject
Answer:
noun
Explanation:
Tony is a person, place, or thing
Answer:
The word Tony is a noun because a noun is a person, place or thing and Tony is obviously a person
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Hermione's possible genotypes are MMss or MM'ss. What are possible genotypes of Hermione's parents who are muggles?
MM'Ss or MMSs are the possible genotype of Hermione's parents.
Explanation:
Muggles have a gene for magic but not expressed in them, S represents silencing, s is no silencing).
If Hermione's genotype is MMss or MM'ss
then Hermione's parents would have Ss (but did not express S in Hermione and parents were heterozygous)
Hermione's parents could have M' M alleles but M' could or could not have appear in this case
so parents genotype are
MM'Ss or MMSs
It can be checked by crossing the possible genotype of parents
M M' s S
M MM MM' s ss Ss thus Hermione has this possible combination
M MM MM' S Ss SS as MMss , MM'ss
Language: English Español
MEIOSIS
Meiotic
Division 1
DNA
Replication
and Recombination
Cell
Division 1
Meiotic
Division 2
00:00:43
Cell
Division 2
OD ODS
ÓÓÓÓ
At the end of meiosis II, how does the DNA in each of the four new cells compare to the DNA from the original cell?
Answer:
Meiosis is known as the reduction division. It produces four haploid (n) gametes containing only one chromatid from each chromosome. Therefore, at the end of meiosis 2, the number of chromosomes is half that of the original cell.
Explanation:
Following is a summary of the events of meiosis:
Interphase:
Prepares the cell for division. Duplication of DNA, duplication of centrioles occurs and the cell grows in size. At this stage the cell is diploid (2n).
Prophase 1:
First stage of Meiosis 1.The centrioles move to the poles of the cell, the nuclear membrane disintegrates, homologous chromosomes pair up (in the form of tetrad), form a chiasmata and then exchange segments of chromosomes with each other. This process is called crossing over.
Metaphase 1:
Involves the arrangement of the crossed over, homologous chromosomes on the metaphase plate which is sort of like a web of spindle fibers that originates from the centrioles.
Anaphase 1:
The tetrads arranged on the metaphase plate are pulled apart by the spindle fibers. This is the result of tension that build up in the spindle fibers as they grow towards opposite poles.
Telophase 1:
The last stage of meiosis 1. Involves the arrival of the chromosomes at the poles, the nuclear membrane starts to form and the chromosomes start decondensing. Telophase 1 yields 2 daughter cells with half the number of chromosomes as that in the parent cell.
Meiosis 2:
Meiosis 2 is exactly similar to mitosis. The only difference is that the haploid cells entering meiosis 2 do not duplicate their DNA. Meiosis 2 just involves the separation of the sister chromatids of homologous chromosomes.
As mentioned above, interphase does not occur before meiosis 2.
Prophase 2 involves the disintegration of nuclear envelope, centrosomes start moving to the poles.
Metaphase 2 arranges the chromosomes on metaphase plate.
Anaphase 2 separates the sister chromatids from the chromosomes.
Telophase 2 develops the nuclear envelope and separates the nuclei of the daughter cells into 2. Nuclear division id followed by cytokinesis (division of cytoplasm). Telophase 2 result sin 4 haploid daughter cells with one chromatid from each chromosome.
Identify one abiotic factor in the diagram that functions as a limiting factor for the autotrophs in this ecosystem and explain why it would be considered a limiting factor
Abiotic factors in an ecosystem comprise the non-living components, such as sunlight, that might limit the growth of autotrophs by restricting the capabilities for photosynthesis. Autotrophs are self-sustaining organisms that need sunlight to manufacture their own food. Insufficient sunlight, therefore, becomes a limiting factor for these organisms and affects the entire ecosystem.
Explanation:In the context of an ecosystem, an abiotic factor refers to all of the non-living physical and chemical factors that influence the distribution and abundance of organisms. A limiting abiotic factor for autotrophs (organisms that can produce their own food from inorganic substances) in this ecosystem could be sunlight. Sunlight can be considered a limiting factor because it is necessary for photosynthesis, the process by which autotrophs produce their own food. If the sunlight is insufficient, it limits the growth and productivity of autotrophs, thereby influencing the entire ecosystem.
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Final answer:
Sunlight is an abiotic limiting factor for autotrophs in an ecosystem because it is essential for photosynthesis, affecting their growth and the entire food chain.
Explanation:
One abiotic factor that functions as a limiting factor for the autotrophs in an ecosystem is sunlight. Sunlight is considered a limiting factor because plants and other photosynthetic organisms require it for photosynthesis, which is fundamental to their energy production and growth. Without sufficient sunlight, these autotrophs cannot produce enough energy to sustain their metabolic processes, grow, and reproduce. This limitation can affect the entire food chain since autotrophs serve as the primary producers and form the base of the ecosystem's energy pyramid.
Explain why a rock pocket mouse color influence its overall fitness. Remember that "fitness" is defined by an organisms ability to survive and produce offspring in its environment
Answer:
The rock pocket mice rely on their fur color for camouflage. So, on the tan sand more light colored mice will survive because they blend in and on the dark lava rock more dark colored mice will survive and the allele for dark fur will be passed on to their offspring
Owing to the definition of fitness as being an organism's ability to survive in an environment, the fact that the color of pocket mouse aligns or blends with the color of their niche protects them from predation.
Rock pocket mouse lives in environments which conceals their presence. This is achieved by staying in areas where their fur color blends with the habitat. Hence, concealing their existence or presence. Light colored pocket mouse lives on light colored rocks while dark colored species lives on dark lavas. This keeps them safe from predators.Therefore, pocket mouse select their living area based on their color in other to conceal their presence and keep them safe, hence, increasing their fitness level.
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What is the name of the process where DNA is
duplicated to create two strands of DNA?
This process is called DNA Replication. Replication is essential/needed with DNA and when the cell divides into two parts, the two daughter cells have to have the same genetic information. Replication is needed for this genetic information to be copied.
- CloutAnswers
The duplication of DNA to produce two identical DNA strands is known as semiconservative DNA replication, where each new molecule contains one parental strand and one new strand.
Explanation:The process where DNA is duplicated to create two strands of DNA is known as DNA replication. This is a semiconservative process, which means one strand from the original DNA molecule is conserved, or kept the same, in each of the two new DNA molecules. During semiconservative replication, an enzyme called DNA helicase breaks the hydrogen bonds between complementary bases, unfolding the double helix. Then, DNA polymerase reads the existing strands and adds new nucleotides to form complementary strands. The resulting two daughter DNA molecules, therefore, consist of one old parental strand and one new strand, preserving half of the original DNA molecule in each.
This complex process occurs during the synthesis phase of the eukaryotic cell cycle, ensuring that each new cell receives an exact copy of the DNA. DNA replication is also considered an anabolic process because it involves the synthesis of new molecules.
What sequence of bases would pair with GTACG?
In DNA, the bases are adenine (A), cytosine (C), guanine (G), and thymine (T). A always pairs with T and C always pairs with G. Therefore, the sequence GTACG would pair with the sequence CATGC.
Explanation:The DNA bases are assigned the letters A (adenine), C (cytosine), G (guanine), and T (thymine). The base pairing in DNA is always consistent, with A pairing with T and C pairing with G.
The sequence of bases GTACG therefore pairs with the sequence CATGC. This is based on the complementary base pairing rule. Wherever G is present in the original sequence, it pairs with C in the corresponding sequence, hence the G in the first sequence pairs with the C in the second sequence. Similarly, A in the original sequence pairs with T in the second sequence.
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The sequence of bases that pairs with GTACG, considering DNA's antiparallel nature and specific base pairing, is 5'-CGTAC-3' as the complementary sequence.
To determine the sequence of bases that would pair with GTACG, we need to remember that DNA strands are antiparallel and the bases pair specifically; adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). Therefore, the complementary sequence for 5'-GTACG-3' would be 3'-CATGC-5'. Since the strands are antiparallel, when writing the complementary strand in the same 5' to 3' orientation, it would be written as 5'-CGTAC-3'.
Which measures the amount of kinetic energy of the particles that make up
a substance?
OA) mass
OB) volume
OC) distance
OD) temperature
Answer
Tempature
Explanation:
Answer: D) temperature
Explanation: Kinetic energy is the energy of a moving particle or body. When the temperature of a substance is increased, the particles of the substances gain kinetic energy, and when the temperature decreases the kinetic energy decreases. When the temperature of a substance is zero, the kinetic energy of the particles is zero. For example, when heat is applied to water, its temperature increases, and the kinetic energy of the particles begin to increase. If the heat persists, the temperature continues to increase and kinetic energy of the water particles continues to increase and the particles begin to move in a random manner, colliding with one another and the walls of their container until a point where the water begins to boil. When the heat is removed, the temperature decreases and the kinetic energy of the water particles decreases until the water cools.
an equation that shows how an objects acceleration relates to its mass
Answer:
the wieght
Explanation:
Answer:
a = f (net) / m
Explanation:
a = f (net) / m, where a = acceleration, f (net) = the net force acting on the object, m = the mass of the object.
What is a possible eDuring exercise, sensory receptors detect changes in oxygen and carbon dioxide levels in the blood. This information is then sent to the brain's medulla, which causes the heart to beat faster and increases the rate of breathing. Exercising also causes the nervous system to signal the pancreas and thyroid gland to release hormones which regulate metabolism.
Which statement is best demonstrated by this scenario?
ffect of leakage of inner ear fluid?
Answer:
Exercise is important for the body to function properly.
Explanation:
Exercise helps a person to maintain the oxygen amounts in the body. Exercise, as such, enhances and regulates almost every system of the body including the nervous, respiratory, circulatory and hormonal systems.
The sympathetic division of the autonomic nervous system controls the physical activities in a person's body by detecting the low levels of oxygen and increasing amounts of carbon dioxide in the body.
During vigorous exercise, the autonomic system increases the heart rate and breathing to meet the demand for oxygen. Sensors in the carotid arteries, aorta, and right atrium communicate with the brain to modulate these functions. Hormonal release by the pancreas and thyroid also aids in metabolic regulation.
Effects of Vigorous Exercise on the Autonomic System:
During vigorous exercise, the body undergoes several physiological changes to meet the increased demand for oxygen and nutrients by the muscles. The autonomic system plays a crucial role in regulating these changes. When cellular respiration increases, so does the level of carbon dioxide in the blood, which stimulates receptors in the carotid arteries and aorta. These receptors send impulses to the medulla oblongata, which in turn accelerates the heartbeat. Additionally, increased muscular activity leads to more blood being driven back to the right atrium, causing its distension and stimulating stretch receptors. These receptors also send signals to the medulla, contributing to the increased heart rate.
The respiratory system of the brain is activated by psychological stimuli, motor neuron activation of skeletal muscles, and proprioceptors in the muscles and joints when exercise is initiated. This leads to an immediate increase in ventilation to supply the muscles with the necessary oxygen.
Moreover, the body's response to physical exertion also involves hormonal regulation. The pancreas and thyroid gland release hormones that regulate metabolism, contributing to the body's ability to adapt and perform under stress. These changes resemble the 'fight-or-flight' response and allow the body to cope with the demands of vigorous exercise.
Why must meiosis and not mitosis be used to produce gametes?
Final answer:
Meiosis is essential for producing gametes because it halves the number of chromosomes and facilitates genetic diversity, making it distinct from mitosis that produces identical diploid cells for growth and repair.
Explanation:
Meiosis must be used instead of mitosis to produce gametes because meiosis reduces the number of chromosomes by half, creating haploid cells, and introduces genetic variation. During meiosis, homologous chromosomes separate and segregate randomly, producing gametes with unique combinations of chromosomes.
This is essential for sexual reproduction, where two gametes unite to form a new organism with a complete set of chromosomes. Genetic variation is increased through processes such as crossing over during meiosis, contributing to the evolutionary success of sexually reproducing organisms.
Meiosis involves two cell divisions resulting in four unique haploid cells, each with half the DNA content of the parent cell, which is important for preventing the doubling of chromosome number during fertilization.
Contrastingly, mitosis is designed to produce two genetically identical diploid cells for growth and repair, and it retains the full set of chromosomes found in the original cell, which is not suitable for the production of gametes.
Meiosis must be used to produce gametes instead of mitosis because meiosis reduces the chromosome number by half, which is essential for maintaining the consistent chromosome number across generations through sexual reproduction.
In sexually reproducing organisms, diploid organisms produce haploid gametes (sperm and egg cells) that combine during fertilization to form a diploid zygote. If mitosis, which is a process of cell division that results in two genetically identical diploid daughter cells, were used to produce gametes, the chromosome number would double with each generation, leading to an exponential increase in chromosome number, which is not sustainable.
Meiosis, on the other hand, involves two rounds of cell division following a single round of DNA replication, resulting in four haploid cells. This process ensures that each gamete contains half the number of chromosomes of the parent organism. When two gametes fuse during fertilization, the resulting zygote has the correct diploid number of chromosomes, which is characteristic of the species.
Furthermore, meiosis introduces genetic diversity through the processes of crossing over during prophase I and independent assortment of chromosomes during metaphase I. This genetic variation is crucial for the evolution and adaptation of species.
In summary, meiosis is necessary for the production of gametes because it:
1. Reduces the chromosome number by half to maintain a stable chromosome number across generations.
2. Ensures that the zygote formed after fertilization has the correct diploid number of chromosomes.
3. Introduces genetic diversity through crossing over and independent assortment.
What effect does the smoke have on the pH of water?
Verified Answer ✔️
The ph of smoke disrupts the natural ph of water( which is 7, the neutral ph) in the atmosphere causing it to become acidic . This is dangerous as it will also have effects on rain and soil ph.
Final answer:
Smoke introduces pollutants into the environment that can dissolve in water, forming acids and lowering the water's pH, making it more acidic. This acidification can lead to consequences like acid rain and has broad implications on aquatic life, material corrosion, and water treatment.
Explanation:
Smoke, particularly from combustion sources such as vehicles and power plants, produces pollutants like NOxs (Nitrogen Oxides), SOxs (Sulfur Oxides), CO (Carbon Monoxide), CO₂ (Carbon Dioxide), and various inorganic and organic volatile organic compounds (VOCs) that can significantly influence the acidity of water bodies. When these compounds dissolve in water, they form acids such as sulfuric, nitric, and carbonic acids, which lower the water's pH level, making it more acidic than its neutral state (pH=7). This alteration in pH can have profound effects on both the aquatic environment and the materials the water contacts.
Acid rain is a direct consequence when these acidic compounds are absorbed by rain clouds. It poses a threat to ecosystems, corroding metals, and affecting the structural integrity of buildings. Moreover, it's essential to understand that the pH of water is a critical measure of its reactive characteristics, where low pH levels indicate corrosive properties harmful to metals, while high pH levels suggest alkaline water is prone to scaling. The pH of water also significantly influences its treatment and use.
Which virus has a structure that includes an outer lipid bi layer that is studded with proteins?
Answer:
The envelope is an outer lipid bilayer that is studded with proteins. The function of the envelope is to identify and bind some receptor sites on the host membranes. After fusing with the cell membrane, it allows to capsid and genetic material to enter the cell and infect it.
Explanation:
2. Which of the following is a heterotroph?
a. Dirt
b. Pumpkin
c. Cat
d. Flower
Answer: c) Cat
Explanation:
A heterotroph is an organism which depends on plants or other animals for food because it cannot manufacture its own food. All animals are heterotrophs while green plants are autotrophs because they can manufacture their own food using chlorophyll in a process known as photosynthesis. Heterotrophs feed on complex organic food materials.
In humans, dimples are dominant to no dimples and long eyelashes are dominant to short. A man with no dimples and short eyelashes mates with a woman who is heterozygous for both traits. Determine the phenotypic ratio of the offspring. Also determine what percentage of their offspring will have the same genotype as their mother.
The phenotype ratio of the offspring is 1:1:1:1
25% progeny will have the genotype similar to their mother. DdLl
Explanation:
Dimples are dominant = D long eyelashes are dominant = L
no dimples are recessive = d short eyelashes are recessive = l
The genotype of the man with no dimples and short eyelashes
ddll
The genotype of the woman who is heterozygous for both the traits
DdLl
From the Punnet square:
dl dl dl dl
Dl Ddll Ddll Ddll Ddll
DL DdLl DdLl DdLl DdLl
dL ddLl ddLl ddLl ddLl
dl ddll ddll ddll ddll
The genotype ratio is= 1:1:1:1
Phenotype ratio= 1:1:1:1
( from the results 4 progenies of each genotype combination and phenotype traits as ( Ddll dimple-short eyelashes, DdLl Dimples and long eyelashes, ddLl no dimples- long eyelashes, ddll no dimples short eyelashes.)
The mother is heterozygous for both the characters so 25% of the progeny will have the same genotype as their mother.
33.33% of their offspring will have the same genotype as their mother (DdLl).
Step 1
To solve this, let's use Punnett squares to determine the phenotypic ratio and then calculate the percentage of offspring with the same genotype as the mother.
The man's genotype: no dimples (dd) and short eyelashes (ll).
The woman's genotype: heterozygous for both traits (DdLl).
Step 2
First, let's create a Punnett square:
Dd Dd
----------------
Ll | DDLl | DdLl
Ll | DDLl | DdLl
Step 3
Now, let's determine the phenotypic ratio:
- Dimples (D) and long eyelashes (L): 2 (DDLL)
- Dimples (D) and short eyelashes (l): 4 (DDLl)
- No dimples (d) and long eyelashes (L): 2 (DdLL)
- No dimples (d) and short eyelashes (l): 4 (DdLl)
So, the phenotypic ratio is 2:4:2:4, which simplifies to 1:2:1:2.
Step 4
Now, let's calculate the percentage of offspring with the same genotype as the mother (DdLl):
The total number of offspring is 2 + 4 + 2 + 4 = 12.
The number of offspring with the genotype DdLl is 4.
Percentage = (Number of offspring with DdLl genotype / Total number of offspring) * 100
Percentage = (4 / 12) * 100
Percentage = 33.33%
So, 33.33% of their offspring will have the same genotype as their mother (DdLl).
An 1815 volcanic eruption in Indonesia was followed by a three-year famine
around the world. How was the volcano linked to the famine?
O
A. The eruption's ash and gas significantly dimmed the sun.
B. The eruption preserved an ancient human civilization.
sh
O
C. The eruption contributed to global warming.
O
D. The eruption's heat and energy killed all the farmers in its path.
O
E. The eruption killed many local people.
Answer:
C. The eruption contributed to global warming.
Explanation:
Volcanic eruption can enormously contribute to the factors that initiate global warming through release of harmful gases to the atmosphere. These gases collectively form a blanket-like cover in the atmosphere that prevent heat escape to the atmosphere from the earth. Result is accumulation of heat on earth and not only leads to extreme temperatures but also harsh climatic conditions that devastate farming activities. When farming is compromised, hunger is inevitable.
Which statement best explains how exposition helps a playwright develop social issues in a play?
Answer:
Exposition develops social issues by introducing conflicts and settings.
Exposition in a play provides background information that helps the audience understand and engage with the social issues being explored. It establishes the foundation for exploring the social issues and presenting conflicts and different perspectives. Without exposition, the significance of the social issues would be diminished.
Explanation:Exposition in a play refers to the introduction of background information about the characters, setting, and events. In terms of developing social issues, exposition can help a playwright by providing the necessary context for the audience to understand and engage with the social issues being explored in the play. For example, through exposition, the playwright can reveal the socio-economic status of the characters, the historical or cultural background of the setting, and the key events or incidents that contribute to the social issues being addressed.
By providing this information, exposition helps the audience to empathize with the characters and understand the social issues in a more nuanced way. It allows the playwright to establish the foundation for exploring the social issues and presenting different perspectives and conflicts. Without exposition, the audience may find it difficult to comprehend the significance of the social issues being portrayed, and the overall impact of the play in addressing those issues would be diminished.
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what type of commensal relationship is remora fish and shark ?
Answer:
A Remora fish would attach itself to a shark and use the shark for transportation and eat all the food that is left over from the shark. The symbiosis relationship between them is a commensalism relationship because the remora is getting its food and the shark gets no benefit.
Final answer:
The remora fish and the shark have a commensal relationship where the remora benefits from food and protection while the shark is unaffected. This is an example of commensalism, a type of symbiotic relationship.
Explanation:
The relationship between the remora fish and the shark is an example of commensalism. In this symbiotic relationship, the remora, often known as a pilot fish, benefits by attaching itself to the shark, feeding on the leftovers from the shark's meals and gaining protection while traveling through the ocean. On the other hand, the shark neither benefits from nor is harmed by the presence of the remora fish.
Commensalism is different from mutualism, where both species involved receive benefits, such as the relationship between goby fish and shrimp. It's also distinct from parasitism, where one organism benefits at the expense of the other. Commensal relationships may involve one organism using another for transportation or housing without any negative impact.
the diagram above shows a process that can occur during meiosis
the moat likely result of this process is...
A.) a new combination of inherited traits that can appear in The Offspring
B.) A increase in the chromosome number of the organism in which this process occurs
c.) an inability to pass either of these chromosomes onto The Offspring
d.)A loss of genetic information that will produce a genetic disorder in The Offspring.
Answer:
The correct option is A) a new combination of inherited traits that can appear in the offspring
Explanation:
Meiosis can be described as a type of cell division which occurs in the sex cells only. This kind of division causes the chromosome number to be reduced to half of that of the parent cell. This happens so that the chromosome number can be maintained in a fertilized zygote.
The phenomenon shown in the picture is of crossing over. Crossing over is the process by which homologous chromosomes exchange DNA segments so that genetic variation can occur among the parents and offspring.
The correct option is A) a new combination of inherited traits that can appear in the offspring
The following information should be considered:
Meiosis could be represent the cell division type that arise in the sex cells only. It caused the chromosome number for decreasing to half of the parent cell. The chromosome number could be maintained in the fertilized zygote.
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Which statement best explains why organisms of the same species that become isolated eventually become different from
each other over time?
Their DNA mutates.
They are exposed to different environments.
They both find ways to survive.
They do not have any of the same genes.
Answer:
They are exposed to different environments.
Explanation:
The isolated organism should have the same gene pool. This gene pool should be maintained if there is no other factor that disrupts it.
But the condition of the habitat might be different and this will create a natural selection. The environment will give advantages to certain traits while giving disadvantages to other traits. But a different environment will support different traits, so this can create variation.
Because! They are exposed to different environments.
Species mutate to fit their environment, like a hummingbird's beak getting longer because its new environment only has deep set flowers (found that out on some animal documentary).
Which of the following is NOT true regarding organisms in the three domains of life?
Group of answer choices:
A: Organisms of all domains pass on genetic information.
B: Organisms of all domains have a nucleus.
C: Organisms in all domains are made up of cells.
D: Organisms of all domains have cells walls
Answer:
b is false
Explanation:
not all living things have a nucleus
The incorrect statement is that 'Organisms of all domains have a nucleus.' Only eukaryotes, one of the three domains of life, have a nucleus. Bacteria and archaea, the other two domains, do not have a nucleus. However, all organisms pass on genetic information, are made of cells, and have cell walls.
Explanation:The statement which is not true regarding the organisms in the three domains of life is B: 'Organisms of all domains have a nucleus.' This is incorrect because only eukaryotes, one of the three domains of life, have a nucleus in their cells. Both bacteria and archaea, the other two domains, lack a nucleus. Their genetic information is instead contained within an area of the cell called the nucleoid.
Regarding statements A, C, and D, they are all true. All organisms in every domain do indeed pass on genetic information. For example, they do this through processes like cell division and reproduction. All organisms are also made up of one or more cells, and organisms from all domains have cells walls, though the composition of these cell walls can vary greatly between the domains.
Learn more about Domains of Life here:https://brainly.com/question/32820008
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