Below is the DNA strand template for making an mRNA needed to produce a small peptide. a.) Transcribe the sequence into mRNA. (0.5 pt.) b.) Translate the mRNA sequence into protein. (0.5 pt.) c.) Transcribe the mRNA and translate into protein with a mutant sequence that has a transition at position 11. What type of mutation does this cause

Answer:

The correct answer is 27 residues.

Explanation:

In an antiparallel beta sheet, there is a repeat for every 7 Angstrom units and the number of residues is two for every repeat. In an antiparallel sheet that exhibits a length of 94.5 Angstrom, the number of residues can be determined by using the following formula:  

2 residues per every 7 Angstrom,  

Length of the given segment is 94.5 Angstrom

Number of residues in this segment are:  

= (number of segments) * (residues per segment)

= (94.5/7) * 2

= 13.5 * 2

= 27 residues.  

Thus, the number of residues in this segment is 27.  

Beta sheets are a type of secondary structure in proteins where segments of the polypeptide chain are aligned side by side. The number of residues in a segment of an antiparallel beta sheet can be calculated using the formula number of residues = length / distance between adjacent residues.

Beta sheets are one of the two major types of secondary structure in proteins, along with alpha helices. In a beta sheet, segments of the polypeptide chain are aligned side by side, forming a sheet-like structure. The length of a segment in an antiparallel beta sheet can be calculated using the formula length = number of residues * distance between adjacent residues. In this case, the length of the segment is given as 94.5 Å, so we can rearrange the formula to find the number of residues: number of residues = length / distance between adjacent residues.

It's important to note that the distance between adjacent residues in a beta sheet can vary, but a common value used for calculations is 3.5 Å. So, using this value, we can calculate the number of residues: number of residues = 94.5 Å / 3.5 Å = 27 residues.

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Answer: the coding strand of Henry CYP2C9 aids in the determination of the precise/correct nucleotide sequence of the RNA strand produced after transcription

Explanation: The template strand functions in the production of the RNA strand during transcription ie the RNA strand is complementary to the template strand. RNA produced runs from the 5' to 3' direction. The coding strand differs from the template strand in that it is the strand that contains the exact nucleotide sequence as the RNA strand but differs in that the RNA is replaced with uracil instead of thymine and it also runs in the 5' to 3' direction.

Final answer:

The coding strand of DNA is the sequence that corresponds to the mRNA sequence produced during transcription, while the template strand is the actual template used by RNA polymerase to synthesize mRNA.

Explanation:

The function of the coding strand of DNA is to serve as the basis for the mRNA sequence during transcription, albeit indirectly. The coding strand has the same sequence as the mRNA, with the only difference being that thymine (T) bases in DNA are replaced by uracil (U) in RNA.

On the other hand, the template strand, also known as the non-coding strand, is the direct template for mRNA synthesis.

RNA polymerase uses this template strand to align and add the appropriate RNA nucleotides to form a new mRNA strand that is complementary to the template strand and matches the coding strand (except for T being replaced by U).

Answer:

option b. have complex grooming and courtship behaviors is correct answer.

Explanation:

According to a research paper published in American journal of primatology provided evidences that chimpanzee males, as promiscuous breeders with minimal costs to mating, should show little or no preference when choosing mating partners (e.g. should mate indiscriminately).

Reference: Proctor, D. P., Lambeth, S. P., Schapiro, S. J., & Brosnan, S. F. (2011). Male chimpanzees' grooming rates vary by female age, parity, and fertility status. American journal of primatology, 73(10), 989–996. doi:10.1002/ajp.20964

Answer: 1/64 would be normal

Explanation:

Let the woman phenotype be Yy, since a carrier is usually heterozygous;

Also let the husband phenotype be Yy

Then Yy seperate to yield two alleles "Y" and "y"

So, the cross of the two alleles:

"Y", "y" X "Y", "y"

F1 will be YY, Yy, Yy and yy

From the crossing,

- the normal phenotype are YY,

-the carriers are Yy, Yy

- while yy is recessive.

Since, the probability that one of their offspring is normal is 1/4; for three children, then 1/4 x 1/4 x 1/4 = 1/64

Thus, probability that all three children are normal is 1/64

Answer: Option C and E are correct.

Explanation:

Phylum molluscs are invertebrates species. They are the second largest phylum in the animal kingdom .Most mollusc live in marine and others live in freshwater and terrestrial habitat. Molluscs are ceoomates and they have three universal structures which are the mantle (breathing and excretion),radula and nervous system. The molluscs include snail, oyster,clams, periwinkles,octopus, squid e.t.c.

The larvae of molluscs are bilateral symmetrical while the adults are asymmetrical. Molluscs can produce shell, the presence of shell is an inclusion in the phylum.

Molluscs have three body part, the head, visceral mass and muscular foot

Answer: Options B and E are correct

Explanation: molluscs are found in freshwater, marine and terrestrial habitat. Some small species such as the land snail lives in dampy and dark places in terrestrial habitats. Molluscs are animal, are multicellular, have tissue, a digestive tract which includes mouth, stomach, anus and they also possess an oral structure called the radula. Some cephalopods do not have shells as they have lost their shells at one point in evolution and examples include octopuses. Lobsters are crustaceans belonging to the phylum arthropoda. Molluscs do have three main body parts head, visceral mass and the muscular foot.

Answer:

Tetany

Explanation

The refractory period in the heart refers to the shortest interval between consecutive contraction conducted impulses out of the cardiac muscle.

It is important because it allows adjustments to stimuli and limits amount of action potential sent per minute.

Without a plateau extending the refractory period in the cardiac muscles.

Sarcomeres might be stimulated to contract instead of relaxing leading to sustained contraction also called Tetany.

Tetany is an involuntary muscle cramp or contraction caused by overly stimulated nerves.

Answer:

Option B

Explanation:

In biology, fitness refers to the ability of an organism to survive, reproduce, mate and support evolution through gene transfer. A fitness of 0.28 signifies that only 28 percent of a given population are fit physically and able to reproduce while the remaining 72 % are unable to mate and hence cannot reproduce  and contribute towards gene flow and evolution.

Hence, option B is correct

Final answer:

During metaphase of mitosis and metaphase I of meiosis, cells have 46 chromosomes. Following telophase of mitosis, cells also contain 46 chromosomes. However, after telophase I and telophase II of meiosis, cells contain 23 chromosomes.So ,option b) metaphase I of meiosis is correct.

Explanation:

Human cells normally have 46 chromosomes, comprising 23 pairs, with one set from each parent. This diploid state (2n) changes during the process of cell division.

a) metaphase of mitosis: Each cell has 46 chromosomes. The chromosomes align in the center of the cell, but each one still consists of two sister chromatids at this stage.

b) metaphase I of meiosis: Each cell also has 46 chromosomes. However, these are in the form of 23 pairs of homologous chromosomes that will be separated in the next phase.

c) telophase of mitosis: The cell still contains 46 chromosomes, but they are now being divided into two new daughter nuclei.

d) telophase I of meiosis: The two cells created after this phase each have 23 chromosomes, as the homologous pairs have been separated.

e) telophase II of meiosis: After this final phase of meiosis, there are four cells, and each cell has 23 chromosomes—these are the haploid gametes.

Answer:

The wrinkled seed phenotype used by Mendel results from starch branching enzyme.

Explanation:

During mono hybrid cross, Mendel took 2 types of pea plant of which one was tall (TT) and another pea plant was (tt). After crossing, he observed that in F1 generation the ratio of tall and dwarf plant was 3:1

He observed that there is a particular enzyme which causes formation of dwarf plant as the enzyme is absent in wrinkle offspring but present in the round offspring,The enzyme is called as starch branching enzyme.

Thus failure in the formation of this enzyme produce complex metabolic consequences on starch, protein and lipid biosynthesis.

Answer: It will take 1.7 hours. If it isn't correct then please feel free to delete this. If it is however please mark me brainliest. Thanks!

Answer:

First the DNA ligase will join the DNA together.

Secondly, ethidium bromide is added to generate circles after then it is extracted.

After these are done, the DNA becomes negatively supercoiled since

Tw + Wr =constant.

Tw = twist

Wr = writhe

Answer:

The correct answer is the couple: 0.010 M NaCl | 0.010 M CH₃COOH

Explanation:

A semipermeable membrane allows to pass through solvent molecules but not solute molecules. In this case, all solutions have the same molarity (M) but they do not have the same quantity of solute particles because some of them dissociate in two or more ions (van't Hoff factor i is higher than 1) . Osmotic flow proceeds always from the side with lower concentration of solute (with more solvent molecules) to the side with higher concentration of solute. For each pair of solution, we have to determine the number of particles of solute or the van't Hoff factor (i). If the right side has the lower concentration of solute (higher i), the osmotic flow will proceed from the right to the left.

0.010 M NH3(aq) |  0.010 M NaCl(aq): NH₃ is a nonelectrolyte (i=1) and NaCl has i= 2. Osmotic flow proceeds from left to the right.

0.010 M NaCl(aq) |  0.010 M FeCl3(aq): NaCl has i=2 and FeCl₃ has i=3 (it dissociates in Fe⁺ and 3 Cl⁻). Osmotic flow proceeds from left to the right.

0.010 M NaCl(aq) |  0.010 M CH3COOH(aq): NaCl has i=2 and CH₃COOH is a nonelectrolyte (i=1). The lower concentration is in the right side, so the osmotic flow proceeds from right to left.

0.010 M NaCl(aq) |  0.010 M CaCl2(aq): NaCl has i=2 and CaCl₂ has i=3 (it dissociates in Ca⁺ and 2 Cl⁻). The lower concentration is in the left side so the osmotic flow proceeds from left to right.

0.010 M CaCl2(aq) |  0.010 M FeCl3(aq): CaCl₂ has i=3 and FaCl₃ has i=4 (it dissociates in Fe⁺ and 3 Cl⁻), so the lower concentration is in the left side and osmotic flow proceeds from left to right.

In the given case, the osmotic flow proceeds from the right to the left arm - 0.010 M NaCl(aq) | 0.010 M CH3COOH(aq)

It is the spontaneous flow of molecules of the solvent through a semipermeable membrane. The flow would be for the zone of high concentration in order to achieve equal concentration on both sides.

Since we have to apply the pressure on the left arm of the tube to stop osmosis. It indicates that the solution in the left arm is hypertonic to the one in the right arm of the tube.

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Answer:

II. There is an electronegativity difference between the bonded atoms.

Explanation:

In a compound that has a number of individual dipoles(weaker force of attractions between compounds). There exist a weaker intermolecular force of attraction ( Vander waal's forces), these force of attraction arises from fluctuating dipoles in atom molecules brought by the movement of electrons around the atomic nucleus. They possess weak electronegativity difference between the bonded atoms because they have less energy to break these weaker bonds.

Also, individual dipoles can interact with each other in an way which will also increase the boiling point and as boiling point increases there is decrease in electronegativity difference between the bonded atoms.

On the other-hand, A polar compound are ionic compounds and the bonding between them are electrovalent bonding because of their high melting and boiling points. They possess high electronegativity.

Answer:

Option C, [tex]256[/tex]

Explanation:

The diploid number of chromosomes are represented as [tex]2N[/tex].

Here the somatic chromosome number is [tex]16[/tex] which can be represented in the "[tex]2N[/tex]" format with N being equal to [tex]8[/tex].

Now, as we know that the total number of chromosomal combination with chromosome number being

[tex]16 \\OR\\2 N(8)[/tex]

is equal to

[tex]2^N\\[/tex]

Substituting the given values in above equation, we get -

[tex]2^8\\= 256\\[/tex]

Therefore, total of [tex]256[/tex] different combinations of centro-meres could be produced during meiosis.

Hence, option C is correct

The 'lub-dub' sound we hear is the sound of the heart valves closing, not the contraction of the heart muscle. The 'lub' is the sound of the mitral and tricuspid valves closing, while the 'dub' is the sound of the aortic and pulmonic valves closing.

The statement 'a. The "lub-dub" sound originates from the physical act of the heart contracting' is NOT true regarding the sounds associated with the heart. The "lub-dub" sound we hear is actually made by the closing of heart valves, not the contractions of the heart muscle itself. Specifically, the "lub" is the sound of the mitral and tricuspid valves closing at the beginning of systole (an active phase when your heart pumps blood), while the "dub" is the sound of the aortic and pulmonic valves closing at the beginning of diastole (a resting phase when your heart fills with blood).

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Final answer:

The incorrect statement is that b. the "lub-dub" sound originates from blood turbulence  through the heart. These sounds are actually the result of the closing of the AV valves (for "lub") and the semilunar valves (for "dub"), which can be heard with a stethoscope.

Explanation:

The question is asking which statement is NOT true about the origins of the heart sounds. The answer to this is b, "The "lub-dub" sound originates from blood turbulence through the heart." It is not correct because the "lub-dub" sounds, known medically as S1 and S2, are primarily caused by the closing of the heart valves, not by blood turbulence.

The "lub" or the first heart sound, S1, occurs when the atrioventricular (AV) valves close at the beginning of ventricular systole, while the "dub" or the second heart sound, S2, happens when the semilunar (SL) valves close at the end of ventricular systole. When a medical practitioner uses a stethoscope to listen to the heart, these sounds provide critical information regarding the heart's condition.

Answer:

Sulphur, because it is the major building element for protein synthesis.

Explanation:

A diet of only canned spaghetti has  no Sulphur contents ( the only mineral in spaghetti is iron( 4mg ). But most enriched  canned spaghetti contains  4g protein. However the sulphur in this protein would have been broken down during heat processing and packaging to sulphides(picked up by sulphur resistant enamel in the can). Therefore she has been on no protein diet but just on purely carbohydrate diet, hence protein deficiency.

Consequently,her body sulphur content is very low. Sulphur is the major content of some amino acids in the body of animals; especially in  formation of methionine and Cysteine structures.

The sulphur content of Cysteine residues provides disulphide bridges(S-S) in polypeptide chains which is important for assemblage,storage and stability (as covalent bonds)  of protein structure needed for  protein synthesis. In addition, Methionine is an essential amino acid, needed in protein synthesis,

Thus   lack of sulphur results in lack of methionine and cystenine and therefore ,deficiency of protein .

.

Structures does not exist as a pair d. The urethra Therefore , d. The urethra is correct .

Explanation:

a. The Kidney:

The kidneys are paired organs in the human body, each individual having two kidneys.

They are essential in the urinary system, primarily responsible for filtering waste products and excess substances from the blood to form urine.

b. The Sphincter Muscle:

Sphincter muscles are circular muscles that surround various openings in the body, including the digestive and urinary tracts.

While there are multiple sphincter muscles, they exist as pairs, serving to regulate the flow of substances through the associated openings.

c. The Ureter:

The ureters are a pair of tubes that carry urine from the kidneys to the urinary bladder.

Humans typically have two ureters, one connected to each kidney, allowing the flow of urine from both kidneys to the bladder.

d. The Urethra:

Unlike the kidneys and ureters, the urethra is a single tubular structure. It is the tube that carries urine from the urinary bladder to the exterior of the body.

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d). The urethra is the correct answer because it is a singular structure, unlike kidneys and ureters, which exist in pairs. Sphincter muscles are specialized muscles and not paired organs.

The question asks us to identify which of the following structures does not exist as a pair: The kidney, the sphincter muscle, the ureter, or the urethra.

Thus, the correct answer is d. The urethra, as it is a singular structure.

Answer:

If an organism has a recessive phenotype for a trait following simple Mendelian inheritance, there is only one possible genotype that can be attributed to them. For example green eyes (C) is dominant over grey eyes (c). If an organism has blue eyes, the only possible genotypic combination is (cc), as there cannot be any presence of the dominant gene.

Final answer:

If an organism has a recessive phenotype for a trait following simple Mendelian inheritance: it means that the organism's genotype contains two recessive alleles, also known as being homozygous recessive.

Explanation:

An organism with at least one dominant allele will have the phenotype of the dominant allele, meaning that the recessive trait will only be exhibited when both alleles for the trait are recessive. This is consistent with Mendel's law of segregation, which states that allele pairs segregate during gamete formation and randomly recombine during fertilization.

In practical terms, if both parents are carriers of a recessive trait, there is a 25% chance for each child to express the recessive trait.

This can be demonstrated with a test cross, where an organism with a dominant phenotype (if heterozygous) is crossed with an organism that is homozygous recessive, potentially resulting in a 1:1 ratio of the offspring displaying the dominant to recessive phenotype.

Answer: b) [tex]10^{4}M2[/tex] and [tex]-5.5 kcal/mol[/tex]

Explanation:

Equilibrium concentration of [tex]A[/tex] = [tex]10^{-2}M[/tex]

Equilibrium concentration of [tex]B[/tex] = [tex]10^{-2}M[/tex]

Equilibrium concentration of [tex]C[/tex] = [tex]10^{-2}M[/tex]

Equilibrium concentration of [tex]ABC[/tex] = [tex]10^{-2}M[/tex]

The given balanced equilibrium reaction is,

                            [tex]A+B+C\rightleftharpoons ABC[/tex]

The expression for equilibrium constant for this reaction will be,

[tex]K_c=\frac{[ABC]}{[A][B][C]}[/tex]

Now put all the given values in this expression, we get :

[tex]K_c=\frac{10^{-2}}{(10^{-2})^3}[/tex]

[tex]K_c=10^4M^2[/tex]

[tex]\Delta G^o=-2.303\times RT\times \log K_c[/tex]

where,

R = universal gas constant = 2 cal/K/mole

T = temperature = 300 K

[tex]K_c[/tex] = equilibrium constant = [tex]10^4[/tex]

[tex]\Delta G^o=-2.303\times 2\times 300\times \log (10^4)[/tex]

[tex]\Delta G^o=-5527.2cal/mol=-5.5kcal/mol[/tex]

Thus the equilibrium constant and the standard free energy of this association reaction at T=300 K are [tex]10^4M^2[/tex]  and [tex]-5.5kcal/mol[/tex]

Answer:

Communication can be complicated in any organization. This is due to the fact that discussing peer to peer in a corporate office, of the institution, is going to be a lot unlike discussing peer to peer in a low-level office setting.

Also, cultural diversity can take a form in how efficient communication is. It is also very important that varying forms of communication are employed. Businesses that consists of many varying departments won't be dependent wholly on face to face communication. Therefore, it is necessary to have other forms of communication being utilized often. Examples of such Forms: email, phone, radio, etc.

In order to establish an effective route of communication that each sector of the organization feeds from, skilled communication professionals is necessary to be placed at every sector or place of business. This will permit corporate to possess “eyes on the target” per say. In other words, they can possess actual people all through every department or unit that can convey messages back and forth. International seems to do a good job at this. Their communications directors are involved with the relay of messages, permitting corporate’s suggestions which is then tailored to fit their particular department

Answer:

A. ability to infect a particular type of cell within the host.

Explanation:

In plants, tropism refers to the movement of a plant part in a particular direction in response to any stimulus. In microbiology, tropism refers to the ability of pathogen to infect a particular type of cell in the host.  

The tropism in which a particular cell is infected is called cell tropism. The tropism in which a particular tissue is infected then it is cell tissue tropism. Host tropism is also seen in pathogen when they infect specific host. Stimulus is required for any tropism. So the right answer is A.

Answer:

A) ability to infect a particular type of cell within the host.

Explanation:

Viral tropism refers to the ability of a virus to infect a particular cell, tissue and a host species.

The viruses have to interact with a variety of negative and positive factors in the cell so the viral tropism is determined at different levels of the viral-host interaction that is during replication and viral progeny production.

The viral tropism occurs at two-step and based on this is of two types- the receptor-independent tropism which takes place intracellularly and the receptor-dependent tropism which takes place at the cell surface.

Thus, Option-A is the correct answer.

Final answer:

The fundamental principles of chemistry are critical for understanding biological processes. The composition and reactions of chemicals form the basis of all life, and this knowledge is requisite for grasping the complexity of biology, which is why it is taught first in Biology courses.

Explanation:

One might wonder why the first thing you learn in a Biology course is Chemistry. The reason is that chemistry forms the fundamental basis for understanding the biological processes that occur in all living organisms. Our cells consist of thousands of chemicals, involving elements such as carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur. These chemicals combine through chemical reactions to form the building blocks of life. Additionally, the products we use daily, our food preparation methods, and even how our bodies function, involve chemistry at a fundamental level.

In a Biology course, understanding the chemical foundation of life allows students to grasp complex biological processes. For instance, studying the atomic structure of molecules helps in understanding how proteins and nucleic acids work. Similarly, knowledge of how different forms of matter combine is pivotal in areas such as the synthesis and design of drugs—a key aspect of medicine.

Final answer:

A nonsense mutation in the mRNA sequence can introduce a stop codon, prematurely ending the translation process and therefore shortening the protein. The mutated mRNA sequence for the given DNA would have a point mutation turning the second codon into a stop codon, thus producing a truncated and likely non-functional protein.

Explanation:

To induce a point mutation that shortens the protein, you would create a nonsense mutation in the mRNA sequence. For the original DNA sequence TAC CGA ACC TTA, the corresponding mRNA sequence is AUG GCU UGG AAU. If we introduce a point mutation in the second codon to change it to a stop codon, we can use the stop codon UAA. The mutated mRNA sequence would be AUG UAA UGG AAU. Here, UAA is a stop codon and will cause the translation process to terminate prematurely, therefore shortening the resulting protein.

Nonsense mutations convert a codon that can specify an amino acid into a stop codon (UAA, UAG, UGA), leading to premature termination of translation. This type of mutation can have a profound effect on the protein, as it will be truncated, likely destroying its normal function. This is because the ribosome will cease to translate the mRNA into protein upon reaching the stop codon, resulting in an incomplete and non-functional protein product.

Mutations can profoundly impact an organism by altering its proteins. Depending on where the mutation occurs, the consequences may be mild or severe. Inducing such mutations intentionally can be a valuable tool for research but can be detrimental when they occur naturally and disrupt the organism's biological functions.

Answer:

why is reproduction considered as a life function?

Reproduction is considered as life function because it enable life continuity as a result of the new generation brought to life. Inheritable characteristics are being passed from one generation to another as a result of reproduction.

Explanation:

Without reproduction, there would not be life continuity, life would have end without it as no character would have been inheritable

Answer: Reproduction is considered as life function because it is important for living things survival and without it life will come to an end. Reproduction lead to life continuity and multiplication of living organisms. A particular organism can reproduce to produce offsprings,offsprings reproduce to produce offsprings and it continues like that. Reproduction lead to life continuity and prevention of extinction of species.

Explanation:

Reproduction is the process whereby offsprings are generated or produced from parents. Reproduction can either be sexual or asexual reproduction. In sexual reproduction, two gametes are involved and fuse to form offsprings.

In asexual reproduction, a single parent cell can replicate itself. Reproduction is a life function because without it, there will be extinction or species and life will come to an end.

Pedigree attached

Answer:

1)  2/3

2) 1/2

3) 1/12

Explanation:

1) Individual III.1 is affected. He inherited one r allele from his carrier mother, but must also have inherited another allele from his father, who's genotype we are not told. His father is unaffected, but because III.1 is affected, must be a carrier with the genotype Rr. Therefore, the parents of III.3 have are Rr x Rr. We can carry out a punnett square to assess probabilities

           R     r

 R     RR    Rr

 r        Rr     rr

The probability of him inheriting an r from either parent is 1/2 (as there is 50% chance of being Rr in the punnet square). However, we already know that he is not rr (he is unaffected and has a R allele), so that means 2/3 of the options involve him being a carrier

2) The probability III.4 is a carrier can be calculated because we have the genotypes of her parents, RR x Rr

           R     R

 R     RR    RR

 r        Rr     Rr

The probability III.4 is a carrier is 1/2 but with no possibility that she is affected.

3) If both parents were carriers, there would be a 1/4 chance that individual IV.1 would be affected, see punnet square below:

           R     r

 R     RR    Rr

 r        Rr     rr

Only rr genotype is affected, so the probability is 1:4. However, there is only 1/2 probability that their mother is affected and 1/2 that their father is. To work out their probability based on this we have to multiply the probabilities: 2/3 x 1/2 x 1/4 = 1/12

The probabilities that the parents III-3 and III-4 are carriers of a recessive genetic trait are both 1/2, while the probability of their child inheriting the condition is 1/4.

This question is asking about the probability of individuals III-3 and III-4 being carriers of a recessive genetic condition and the probability of their child being affected. Since we're dealing with a recessive genetic trait, if both parents are heterozygous carriers (Rr), the chance that any one of their children will be a carrier is 50% or 1/2. This applies to the probabilities that III-3 and III-4 are carriers. The chance that their child IV-1 will be affected (rr) is 1/4, as in classical Mendelian inheritance, when both parents are heterozygous carriers, there is a 25% chance for the child to inherit two recessive alleles.

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Answer:

The correct answer is option D) "Ethanol / industrial microbiologists".

Explanation:

Ethanol is one of the most common components of biofuels in the United States. Ethanol is used in biofuels for its property of producing oxygen when burned, which makes car's engine to burn fuel more efficiently. Ethanol is produced by microbial fermentation of glucose from cellulose or cornstarch, and industrial microbiologists are the professionals responsible of making this product commercially available.

Answer:

D) Ethanol / industrial microbiologists

Explanation:

In this case of bio-fuels we have already prepared bio ethanol that is being produced after a process called as fermentation run by utilization of specially designed strains of micro-organisms. This simple fermentation is on a small scale and is not feasible for let say the whole country. Now, the industrial microbiologists are the only expert people that shall advance in some kind of already present hyper fermentation techniques that'll eventually give us enough quantity of ethanol to be used commercially.

Answer:

Part A

[tex]0.108[/tex]

Part B

B.1

Fifty Percent

B.2

[tex]16.4[/tex] %

Explanation:

Part A

Given -

Both the parents are heterozygous for the sickle cell anemia

Let the genotype of the parents be

Ss

where S is the allele for presence of sickle cell anemia

and s is the allele absence of sickle cell anemia

If the above two parents are crossed, following offspring are produced

Ss * Ss

SS, Ss, Ss, ss

The probability of children with sickle cell anemia is equal to

[tex]\frac{3}{4}[/tex]

The probability of children with sickle cell anemia is equal to

[tex]\frac{1}{4}[/tex]

Probability that three of the children have sickle cell anemia and four of the children are healthy

[tex]\frac{7!}{3! * 4!} * \frac{3}{4}^4 * \frac{1}{4}^3\\ = 35 * \frac{81}{256 *64} \\= 0.108[/tex]

Part B

B.1

Hh * hh

Hh, Hh, hh, hh

The first child of the parent has a probability of fifty percent to have Huntington\'s disease

B.2

[tex]\frac{7!}{2!*5!} * \frac{1}{2}^2 * \frac{1}{2}^5[/tex]

[tex]= 16.4[/tex]

Answer:

The sandy variation could be as a result of a homozygous recessive allele at one of two varying genes in these two different types of sandy pigs. Let's refer to them as genes A and B.

A kind of sandy pig may be aaBB and the variety AAbb. The F1 generation in this cross produces heterozygotes for both genes to give all red. This indicates that the A and B alleles are dominant. In the F2 generation, 6 out of 16 give us homozygous for either the aa or bb alleles and produces sandy.

Out of 16 will we have one that would be doubly homozygous and be white. The other 9 will possess at least one dominant allele for both genes.

Answer: Option D) the climate of the community in which the species mentioned above inhabit

Explanation:

Abiotic refers to non-living factors. Thus, the abiotic factors in an habitat where living organisms dwells include the atmospheric conditions such as climate, weather; inorganic nutrients such as phosphorus, carbon compounds, water etc present in the soil of such habitat.

Thus, Option D represent the abiotic factor

Answer:

O. A to K

Explanation:

Arginine (R) is a positively charged basic amino acid and alanine (A) is a hydrophobic amino acid. Arginine is mostly found on surface of protein to produce hydrogen bonds or other ionic combinations so as to provide stability to the protein or control the activity of the protein. Alanine on the other hand, is hydrophobic. Thus, when arginine is replaced with alanine the catalytic ability of the enzyme are affected.

Lysine (K) is known to be a positively charged basic amino acid like arginine. Therefore, mutating alanine to lysine will confer the chemical abilities of the protein as a result of similarity in chemical attributes of arginine and lysine, which will confer the wild type characters of the enzyme.