Explanation:
According to Hardy Weinberg, the gene and allele frequencies for a population should ideally remain unchanged (stable) over generations. However, assumptions by Hardy Weinberg for a population to be at equilibrium can hardly be held true, naturally. This is because;
There is always some form of immigration and emigration within a populationA population can hardly be infinitely largeMutations do occur in populationsIn some occasions, mating within the population may not be randomNatural selection is always at play within populationsLearn More:
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Hardy-Weinberg equilibrium is not common in natural populations due to various evolutionary forces such as mutation, migration, selection, genetic drift, and non-random mating.
Explanation:In natural populations, it is rare for populations to be in Hardy-Weinberg equilibrium. Hardy-Weinberg equilibrium is a concept that describes an idealized population where the allele frequencies do not change from generation to generation. However, in reality, various factors such as mutation, migration, selection, genetic drift, and non-random mating can all disrupt the equilibrium.
For example, genetic drift is a random change in allele frequencies due to chance events. Small populations are more susceptible to genetic drift, and as natural populations are often small, they are more likely to experience random changes in allele frequencies.
Overall, Hardy-Weinberg equilibrium provides a useful theoretical framework, but it is not commonly observed in natural populations due to the presence of various evolutionary forces.
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HELP ASAP. PLEASE RN. TY.
In tug of war, when one team moves toward the other, what can be said about the forces?
Answer:
The two teams pull with equal force as long as they're pulling?
Explanation:
Don't @ me lol
Final answer:
In tug of war, movement toward one team indicates unbalanced forces, where the stronger team exerts a larger force causing movement. If the rope snaps, the tension is released, and teams accelerate in the direction they were pulling.
Explanation:
In a game of tug of war, when one team is moving toward the other, this indicates that there are unbalanced forces at play. Initially, if both teams exert equal forces, the situation is in equilibrium, and the rope does not move. However, when one team starts to overpower the other, there is a resultant force in the direction of the stronger team causing the movement. If the rope suddenly snaps, the forces exerted by the players are no longer balanced, and the force of tension in the rope that was opposing each team's pull is released. The result is that the teams will momentarily accelerate in the direction they were pulling due to inertia.
Which statements are true for a protein whose genetic sequence has 11 codons?
Select all that apply.
1.) It starts with an arginine amino acid.
2.)One start codon and one stop codon are used for its synthesis.
3.)The piece of genetic code used for its production contains 11 codons.
4.)The stop codon codes for methionine.
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Answer:2.)One start codon and one stop codon are used for its synthesis.
3.)The piece of genetic code used for its production contains 11 codons.
Explanation: A codon is a nucleotide sequence on the mRNA that is made up of three nucleotides molecules. A codon is a nucleotide sequence that codes for a specific amino acid. Every amino acid is coded for by at least one codon. Some amino acids are coded for by more than one codon.
During protein synthesis, every protein is synthesized using one start codon and one stop codon. A start codon signals the beginning of translation while the stop codon signals the end of translation. The start codon codes for methionine while the stop codon codes for no amino acid. Therefore, a protein whose genetic sequence has 11 codons is synthesized using a piece of genetic code containing 11 codons.
The true statements are that [Option 2] one start codon, and one stop codon are used for its synthesis, and the genetic code contains 11 codons.
Statement 1: It starts with an arginine amino acid - This statement is false. Proteins typically start with methionine, coded by the start codon AUG.Statement 2: One start codon and one stop codon are used for its synthesis - This statement is true. In protein synthesis, an mRNA sequence typically starts with the start codon AUG and ends with one of the stop codons (UAA, UAG, UGA).Statement 3: The piece of genetic code used for its production contains 11 codons - This statement is also true. The mRNA sequence provided contains 11 codons, including both start and stop codons.Statement 4: The stop codon codes for methionine - This statement is false. Stop codons (UAA, UAG, UGA) do not code for any amino acids; they signal termination of translation.Suppose the two possible alleles for the height gene are tall and short. If short is recessive to tall, provide the symbol representation and the phenotype for each of the genotype for this trait.
The alleles for short will be tt and for tall TT
Explanation:
The recessive alleles are written in small alphabets in Mendelian genetics so the alleles for short is tt.
They must be homozygous to express the phenotypic trait of short height in progeny.
tt = short
suppose if a homozygous tall and homozygous short is crossed
all the progeny will be heterozygous tall. Tt 4:0 ( no short progeny)
Suppose Tt is crossed with Tt
If heterozygous tall are crossed then genotype ratio will be
Tt:TT:tt
2:1:1
This means only 25% will be short.
Question 5 (4 points)
Match the description on the right with the force on the left.
Question 5 options:
A non-contact force that is generated from moving charges.
A force that requires physical contact between objects.
A non-contact force that is generated between charged objects.
A non-contact force that exists between objects with mass.
1.
Magnetic
2.
Electrical
3.
Gravitational
4.
Contact
The clear explanation for the forces mentioned in the question given below
Explanation:
1.A non-contact force that is generated between charged objects is known as "Magnetic force" eg: train tracks, new roller coaster, a compass, motor.
2.A non-contact force that is generated from moving charges is known "Electrical force". eg: Electric charge in a bulb.
3. A non-contact force that exists between objects with mass is known as "Gravitational force". eg: The force that causes apple to fall down from trees, The force thatt makes us to walk instad of floating.
4.A force that requires physical contact between objects is known as "Contact force". eg: moving a chair or table across a room, kicking a ball
How long does it take minerals to form
Answer:
I don't think there is any way to know :/ but they can take seconds to years.
The sedimentary layers of Earth increase in temperature with depth. The massive weight of these layers also causes an increase in pressure which increases the temperature even more. This cycle of heat and pressure transforming the existing rock is called the rock cycle, a system of constantly changing rock formation and melting that links sedimentary, igneous, and metamorphic rock. The hotter the temperature and pressure the greater the metamorphic changes. Depending on the conditions under which rock is changed, the rock gradient forms new metamorphic rock into high-grade or low-grade metamorphic rock
Answer:
The highest grade metamorphic rocks will be formed at high temperatures and high pressures.
Explanation:
Metamorphic rocks can be described as the type of rocks which are formed by a change in the form of the existing rocks. In other words, metamorphosis of igneous, sedimentary or existing metamorphic rocks leads to the production of metamorphic rocks. High temperature and pressure are required by the rocks to change its form and develop into metamorphic rocks. Temperatures usually more than 320 degree Celsius are required for high-grade metamorphism.
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The African snail is a large snail that eats at least 500 different types of plants and is one of the top 100 invasive species in
world. What is the most likely way the snail was introduced into Florida?
A small animal was carrying one on its fur.
A boy brought a pair home as pets.
Two swam across the ocean.
One stuck to an airplane's wing.
Answer:
A boy brought a pair home as pets.
Explanation:
As small organisms will not have any major adaptations for moving quickly or flying to whole another country, hence it is not possible for the snail to travel from Africa to Florida with small animals. Getting stuck on the airplane wing is also not correct as they would have been wiped out by the wind pressure or might have not be able to survive. Hence, the most logical explanation for the snail to get transported to Florida is by a boy who might have brought them as a pet.
The scarcity of food affect the size of a finch population
When too much water has accumulated
Answer:
Too much water accumulation leads to a condition called as water intoxication.
Explanation:
Drinking too much water leads to a condition called water intoxication or water poisoning. This happens because the concentration of water becomes such abundant in a person's body that it dilutes the concentration of electrolytes like sodium in the blood. This causes a disruption in the functioning of the brain hence leading to the death of the person. Various such scenarios have been observed in athletes drinking too much water.
ABO blood grouping of humans is an example of co-dominance. Homozygotes (IAIA and 1815) express either the A or the B
phenotype. Heterozygotes (1215) express both phenotypes equally and the IAB individual has blood type AB. Blood type O is
the result of the genotype 1°1°: this blood type is considered the recessive trait and is the recessive allele for blood type.
Consider the genetic cross for blood type of these two parents. The father is type A and the mother is type B. Both have the
recessive allele for blood type 0. What is the probability that these parents will have offspring with type A blood?
red flowered plant and white flouvared lant is an ayamole
Answer:
In ABO blood grouping of humans, when the genotype that determines the type of blood contains the recessive O gene in the parents, a father with a blood type A and a mother with a type B will have a 25% chance of having a offspring with type A blood.
Explanation:
Blood type is determined by the presence or absence of surface antigens A and B.
Type A contains antigen A and its genotype can be A | A or A | O. Type B contains the B antigen, whose genotype can be B | B or B | O. Blood type AB contains both antigens and a single genotypic expression A | B Type O blood lacks surface antigens.In the case raised, the parents, type A (A | O) and B (B | O) will have an offspring:
Alleles A O
B A|B B|O
O A|A O|O
This shows that the chances of having a offspring with a blood type A is 25%.
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Answer:
25%
Explanation:
i jus know
3. Describe the functions of each of the eleven organ systems.
Answer:
Explanation:
integumentary- protection, produce vitamin d
reproductive- produce offspring
nervous-take messages in, process them, send messages out
endocrine-control body chemically by producing hormones
digestive-absorb nutrients and calories
cardiovascular-move stuff around the body
respiratory-take in O2 gas and get rid of CO2
immune-fight off invaders
skeletal-provide a framework and protect vital organs
muscular-allow movement
urinary- remove waste and control water balance
Final answer:
The eleven organ systems include the integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic and immune, respiratory, digestive, urinary, and reproductive systems. Each has specific functions such as protection, support, movement, coordination, hormone production, circulation, defense, respiration, digestion, waste elimination, and reproduction, respectively.
Explanation:
Functions of the Eleven Organ Systems
The human body comprises various organ systems, each with specialized functions. These organ systems facilitate essential life processes, including organization, metabolism, movement, development, and reproduction. The eleven organ systems are as follows:
Integumentary System: Protects the body, regulates temperature, and provides sensory information.
Skeletal System: Supports the body, protects internal organs, and facilitates movement through the attachment of muscles.
Muscular System: Enables movement of the body and internal organs, maintains posture, and generates heat.
Nervous System: Processes sensory information, controls responses to external and internal stimuli, and coordinates bodily functions.
Endocrine System: Produces hormones that regulate body activities, such as growth, metabolism, and reproduction.
Cardiovascular System: Circulates blood throughout the body, delivering oxygen and nutrients to cells while removing waste products.
Lymphatic and Immune System: Defends against pathogens, returns leaked fluids to the bloodstream, and helps in the absorption of fats and fat-soluble nutrients.
Respiratory System: Facilitates the exchange of gases (oxygen and carbon dioxide) between the external environment and blood.
Digestive System: Breaks down food into nutrients that can be absorbed into the body, and eliminates waste.
Urinary System: Removes waste products from the blood, regulates blood volume and pressure, and controls fluid and electrolyte balance.
Reproductive System: Produces and transports sex cells, with the female system also providing an environment for the development of a fetus.
Many organs belong to more than one system, highlighting the interconnectivity of the body's functioning.
13
In a kidney machine, protein molecules are not lost from the blood
How is loss of protein prevented?
A
B
C
D
Membranes prevent protein molecules diffusing out of the blood.
Proteins are actively transported back into the blood.
Proteins do not enter the kidney machine.
The dialysis fluid contains protein, so there is no diffusion gradient.
Answer: (a) Membranes prevent protein molecules diffusing out of the blood.
what kind of problems will we face if our body had no muscles
Answer:
musculer system is important part of our body. Muscles hold our bones together and helps them to move.
so if we don’t have muscles in our body, we won’t be able to move. we won’t be able to open and close our mouth. eyes etc. we can’t move our any body part.
no smile, no cry, and even we would not be able to breathe.
Explanation:
If short is recessive to tall, provide the symbol representation and the phenotype for each of the genotype for this trait.
Answer:
Genotype can be described as the genetic constitution present in an organism. Phenotype can be described as the physical characteristics which appear in an organism.
The following symbol representation and phenotypes might arise as a result of these genotypes:
A) homozygous dominant: The symbol representation will be TT, the phenotype will be tall plants.
B) Heterozygous: The symbol representation will be Tt, the phenotype will be tall plants.
C) Homozygous recessive: The symbol representation will be tt, the phenotype will be short plants.
the cause of the phases of the moon is a cycle that is close to blank long
28 days
It takes our Moon about 28 days to complete one cycle of phases (from new Moon to new Moon).
Answer:
28 days
Explanation:
100 points and brainliest
Name and Describe the 3 Classifications of Protists and What are three different ways that you can describe a protist?
Answer:
Protists are classified into three categories on the basis of their mode nutrition. They are as under.
1) Algae : Algae is made up of single cell having true nucleus. They are found in those places where water is present. They make their own food like plants.
2) Protozoa : Protozoa is also made of one cell and have true nucleus. They feed on another animals.
3) Fungus like protists : It is a type of protists which feeds on dead bodies of plants and animals.
1) Protists are organisms which are made up of single cell.
2) Protists are eukaryotes i. e. having true nucleus.
3) Protist have some characteristics of animals, plants and fungus.
Pictured above is the brain viewed at midline at 3 months of age. Differentiate between the functions of the thalamus and the pons of a human brain.
A) The pons plays a key role in sleep and dreaming. The thalamus assists with the storage of long term memories.
B) The pons controls our reactions out of fear and how we react to certain stimuli. The thalamus helps us maintain a constant body temperature.
C) The pons is responsible for relaying messages between the two hemispheres of the brain.
The thalamus plays a role in consciousness and sleep.
D) The pons helps relay messages between the cortex and the cerebellum. The thalamus directs different sensory information to the different parts and lobes of the cortex.
Answer:
The correct statement is Option D) The pons helps relay messages between the cortex and the cerebellum. The thalamus directs different sensory information to the different parts and lobes of the cortex.
Explanation:
The thalamus is a part of brain which is present between two parts of the brain i. e. cerebral cortex and the midbrain. The function of thalamus is to carry relay motor signals to cerebral cortex while pons is a part of hind brain that carry relay signals from the forebrain to the cerebellum.
Answer:
I think option D) is the answer just took the test on usa test prep.
QUESTION 3
What steps are involved in creating hydroelectric power?
Water falls through a channel to a reservoir where it turns a turbine to generate electricity.
Water flows into the reservoir where the generator is located. The generator turns, which causes the turbine to transform electricity.
Water flows past a paddle that turns a generator attached to a turbine, and this creates electricity.
Water falls from a reservoir through a channel to a turbine. The water turns the turbines, which allows the generator to make electricity.
Water falls from a reservoir through a channel to a turbine. The water turns the turbines, which allows the generator to make electricity
Explanation:
Hydroelectric power is generated from free falling water through a river channel.
The flow of water at a high speed creates water current and the kinetic energy of the water movement spins turbine attached with a generator. This produces a rotating energy which spins the generator and the coil inside.
The magnetic spinning of coiled wire inside the generator produces electric current which is then stored and transmitted through electric power grid lines to supply electric current.
Hydroelectric power is generated by utilizing the potential energy of water stored in a reservoir behind a dam. The water is released to flow through turbines, which spin and drive a generator to produce electricity, subsequently transmitted through power lines.
Explanation:The process of creating hydroelectric power involves several critical steps. First, a dam is constructed across a river to form a reservoir, trapping the water and creating stored potential energy due to the water's elevated position. When the need for electricity arises, water is released from the reservoir and flows through a penstock, a narrow channel leading to the turbines. As water flows with kinetic energy through the turbines, it causes the turbines to rotate.
These turbines are connected to a generator. The rotational motion of the turbines is converted into electrical energy by the generator, which operates on the principle of electromagnetic induction. Once the electricity is generated, it is transmitted via power lines to be distributed for use. The water that passes through the turbines continues its flow downriver.
Hydropower is a form of renewable energy, and the efficiency of this process can be quite high, sometimes approaching 90% in terms of energy conversion. While the most common form of hydroelectric power comes from dams and reservoirs, other methods include run-of-the-river systems and less frequently, tidal and wave energy, which also harness the power of moving water but through different mechanisms.
2. Which of the following determines where a
population can live?
A. Whether its needs are met by the biotic
factors in the habitat.
B. Whether its needs are met by the abiotic
factors in the habitat.
C. Whether its needs are met by the abiotic and
biotic factors in the habitat.
D. Whether its needs are met by the other
populations in the habitat.
Answer:
The answer should be C.
Explanation:
Answer:
c
Explanation:
The answer is c since a population must have all of its basic needs met in order for the population to thrive. Hope this helps!
whye are only green plants are called producers
Answer: Because they produce gloucose by photosynthesis
Explanation:
There contain chlorophyll which allows them to undergo photosynthesis
Answer: They manufacture their own food in the process known as photosynthesis.
Explanation: Green plants have chlorophyll which is a green pigment found in plant leaves. Chlorophyll helps the plants to trap energy from the sun and use it to produce glucose in the presence of carbon dioxide and water. Green plants are called autotrophs or producers because of their ability to produce their own food. The balanced chemical equation for photosynthesis is 6CO2 +6H2O + sunlight ---> C6H12O6 + 6O2.
Gabriela recently moved to a city in Florida that is prone to severe weather. Help Gabriela prepare for impending storms by identifying the
conditions that lead to each type of severe weather event.
I believe that this is the answer
Answer:
see image
Explanation:
What are nucleobases?
A.harmful substances found in the environment
B.nitrogen molecules that create the DNA sequence
C.special and unique enzymes used in DNA replication
D.genetic information that is passed down to offspring
Answer:
B
Explanation:
Nucleobases, also known as nitrogenous bases or often simply bases, are nitrogen-containing biological compounds that form nucleosides, which in turn are components of nucleotides, with all of these monomers constituting the basic building blocks of nucleic acids.
How are cells like little
Rooms and how are they different?
Answer:
Robert Hooke was the first person to examine a slice of cork under a microscope. He saw little boxes or rooms and hence, gave the name cells to the structure. He called them cells because their structure was similar to small rooms which were called cells by the monks. Hence, cells are similar to little rooms in the structure.
However, there are many differences between the two as cells are living things but little rooms are non- living things. Each cell comprises of the same organelles whereas little rooms might not have the same components.
Which of the following variables are constants in the Cell Homeostasis Virtual Lab? The percent concentrations of sugar solution in beakers B-E The type of solute (dissolved solid) The percent concentration of sugar solution in dialysis tubes B-E The mass of the sugar The amount of water in the beakers The amount of water in the dialysis tubes The amount of time the dialysis tubes are exposed to the sugar solutions in the beakers
Answer:
The amount of water in the beakers
Explanation:
The Cell Homeostasis Virtual Lab is an online experiment that illustrates the principles of homeostasis, osmosis and diffusion.The materials consist of beakers, dialysis tubing, sugar and water.The experiment measures the change in the mass of a solution at varying concentrations of sugar.The experiment demonstrates diffusion of sugar molecules through the dialysis tubing into the water-sugar solution.The change in the sugar concentration is the independent variable as it changes and in turn effects the dependent variable.The response or dependent variable, in this experiment, is the mass of the solution.The amount of water in the beakers does not change. Therefore, in this experiment, it is a constant value.The variables that are constant in the cell homeostasis virtual lab will be:
The amount of time the dialysis tubes were soaked.The amount of water in the beakers.The type of solute.Homeostasis simply means the state of steady internal, chemical, and physical conditions that are maintained by living systems.
Homeostasis is the condition of optimal functioning for an organism such as the body temperature and fluid balance.
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Energy ______ takes place within cells
Answer: Respiration
Explanation:
Respiration is the process of chemical energy stored in food which occurs through various enzyme controlled reactions. Some of the energy generated is stored as adenosine triphosphate (ATP) Hence, chemical energy from food is converted to chemical energy in the cell which the cell stores as ATP
Which of the following best describes the total amount of carbon in the system made up of the Earth and its atmosphere?
Answer:
I have 2 that I think best describes the the total amount so... 1. burning of fossil fuels 2. mineral carbon
Answer:
It remains constant because carbon cycles through the atmosphere, hydrosphere, biosphere, and geosphere
Explanation:
Carbon cycles through the Earth's spheres. Since the Earth is made up of the atmosphere, hydrosphere, geosphere, and biosphere, carbon can move within or between any two spheres in a cycle. It is transferred but remains in Earth's spheres, so the total amount of carbon remains constant regardless of the changes it goes through. These spheres are the atmosphere, hydrosphere, geosphere, and biosphere. Carbon can be transferred from one of these spheres to another, but the total amount of carbon remains constant because no carbon is gained or lost as it changes location throughout the system. Therefore, it remains constant because carbon cycles through the atmosphere, hydrosphere, biosphere, and geosphere.
• What do homeobox genes code for in animals?
Homeobox genes contain a particular DNA sequence that provides instructions for making a string of 60 protein building blocks (amino acids) known as the homeodomain. Most homeodomain-containing proteins act as transcription factors, which means they bind to and control the activity of other genes.
will an object denser than water float or sink
Answer: An object denser than water will sink in water.
Explanation: The ability of an object to float or sink in water depends on its density. An object that is denser or heavier than water will sink in water while an object that is less dense or lighter than water will float in water. For example a piece of stone will sink in water because it is denser than water while a plastic container will float in water because it is less dense than water.
Where is genetic information stored within cells? Genetic information is stored in the Question 1 options: nucleus as DNA molecules mitochondria as ATP. nucleus as ATP. mitochondria as DNA.
I'd say maybe Nucleus as DNA molecules.
Lmk if you got it right!
The genetic information stored should be a nucleus.
Genetic information related to cells:It is the basic building block for all kinds of living things. It gives the structure for the body, takes in nutrients from food, converts those nutrients into energy. Also, Most DNA should be located in the cell nucleus however, a small amount of DNA could also be found in the mitochondria. So here the genetic information should be the nucleus.
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Gel electrophoresis is often used in forensics. Look at the gel on the right. From the evidence DNA, which individual matches the DNA evidence left at the crime scene?
Answer:
Suspect #2 matches the evidence.
Explanation:
Gel Electrophoresis can be described as a molecular biology technique which is used to separate DNA, RNA and proteins based on their molecular sizes. Usually the different samples of the DNA are compared to a standard sample to see which of the suspected samples matches with the standard one.
In the diagram above, the bands from the gel electrophoresis show that the suspect 2 has the most similarities with the standard DNA sequence taken from the crime scene. Hence, he might be the culprit.
Gel electrophoresis is a technique used in forensic science to compare DNA samples by separating DNA fragments according to size. DNA is loaded into an agarose gel and subjected to an electric field, allowing smaller fragments to move faster towards the positive electrode. Stained bands showing DNA fragments are compared to identify matching DNA profiles.
Explanation:Gel electrophoresis is a powerful technique in forensic science for analyzing DNA samples. When a DNA sample from a crime scene is compared to samples from individuals, the process involves several steps. First, DNA is extracted from bodily fluids such as blood, semen, or saliva. The extracted DNA is treated with restriction enzymes and amplified using the Polymerase Chain Reaction (PCR). This mixture of DNA fragments and restriction enzymes is loaded into wells on an agarose gel, and an electric current is applied. The DNA moves towards the positive side of the gel since DNA molecules are negatively charged due to their phosphate backbone. Smaller DNA fragments move more rapidly through the gel matrix and will be located further towards the positive electrode, while larger fragments will migrate more slowly and be closer to the wells.
After electrophoresis, bands are stained using a DNA-specific dye like ethidium bromide to visualize the DNA segments. The pattern of bands is what constitutes a DNA fingerprint, with each band representing DNA fragments of varying sizes. The individual whose DNA pattern matches that of the evidence left at the crime scene is considered to have a matching DNA profile. The DNA patterns are analyzed by comparing the position and size of bands. Typically, a DNA ladder containing fragments of known sizes is used as a reference to determine the size of the DNA fragments present in the sample.