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GuDViN [60]
3 years ago
7

Guinea pig coat color is determined by a single gene. The allele for black coat color is dominant to brown. In a cross between t

wo
black-haired guinea pigs, 20 offspring are born. If both parents were heterozygous, probability would predict that approximately how
many of the 20 offspring would have brown hair?
​
Biology
1 answer:
Whitepunk [10]3 years ago
4 0

Answer: 5 would have brown hair.

Explanation:

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What type of bonds link individual amino acids together?
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peptide bonds

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A generalized swelling of an arm or a leg that occurs after surgical removal of a chain of lymph nodes is known as
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Explain Charles Darwin evolution theory.
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3 years ago
The gene for hairline shape has two alleles: widow's peak (W) and straight hairline (w). What is the percent probability that on
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Answer:

Probability of having a child with genotype Ww is 50%.

Explanation:

This question involves a single gene coding for hairline shape in humans. The allele for widow's peak hairline (W) is dominant over the allele for straight hairline (w). This means that allele W will mask the phenotypic expression of allele w in a heterozygous state.

In a cross between a mother with genotype, Ww and father with genotype, ww, the following gametes will be produced by each parent:

Mother (Ww)- W and w

Father (ww)- w and w

Using these gametes in a punnet square (see attached image), four possible offsprings will be produced with genotypes: Ww, Ww, ww and ww.

Ww(2) : ww(2) or Ww(1) : ww(1)

Hence, 1 out of 2 children produced by the parents will have a genotype Ww, i.e. 1/2. Therefore, the percentage probability is 1/2 × 100= 50%.

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3 years ago
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