In sheep, eye color is controlled by a single gene with two alleles. When a homozygous brown-eyed sheep is crosses with a homozygous green-eyed sheep, blue-eyed offspring are produced. If the blue-eyed sheep are mated with each other, what percent of their offspring will most likely have brown eyes?

a) 0%

b) 25%

c) 50%

d) 75%

e) 100%

Question

Biology

Dayana Cooley

15 May, 06:57

In sheep, eye color is controlled by a single gene with two alleles. When a homozygous brown-eyed sheep is crosses with a homozygous green-eyed sheep, blue-eyed offspring are produced. If the blue-eyed sheep are mated with each other, what percent of their offspring will most likely have brown eyes?

a) 0%

b) 25%

c) 50%

d) 75%

e) 100%

+4

Answers (1)

Know the Answer?

Anabelle Chung · Answer 1

b) 25%

Explanation:

let homozygous brown-eyed sheep = bb

let homozygous green-eyed sheep = gg

bb * gg = bg, bg, bg, bg

b b

g bg bg

g bg bg

If the blue-eyed sheep are mated with each other

i. e bg * bg = bb, bg, bg, gg

b g

b bb bg

g bg gg

Therefore, the percentage of bb (which is brown)

= 1/4

=0.25

= 25%