Question

In cats, the allele (B) produces black color but (b) produces a yellow color. These alleles are incompletely dominant to each other. A heterozygote produces a tortoise shell color. The alleles (B) and (b) are sex-linked as well. Cross a tortoise shell female with a yellow male.
A.vWhat percent of their offspring will be yellow?


B. What percent of their offspring will be black?


C. What percent of their offspring will be tortoise shell?


D. Why is it impossible to have a tortoise shell male offspring?

Answer 1

Answer:

a. 50%

b.25%

c. 25%

d. Why is it impossible to have a tortoise shell male offspring? the x chromosome, a male can only have one copy of the allele - either B. orb, not both!

Explanation:

Answer 2

Alleles can be referred to as alternate forms of a gene. Incomplete dominance refers to two true-breeding parents crossed to give an intermediate phenotype.

The allele (B) produces black color but (b) produces a yellow color.  A heterozygote produces a tortoise shell color (Bb)

Cross a tortoise shell female with a yellow male.

     Bb x bb

Bb Bb bb bb

c.  Bb --- 50% tortoise shell color

a.  bb  --- 50% yellow color.

b. No black -- 0%.

d. The males offspring cannot be tortoise shell because they have just the one X chromosome on which this gene resides. So they are either black or yellow.

Learn more about incomplete dominance: https://brainly.com/question/7294889