Suppose a mother carries two recessive genes for freckles (rr) and a father carries one recessive gene for freckles and one dominant gene for clear facial skin (Rr). What is the likelihood that their first child will have freckles?

A)

1

2

B)

1

4

C)

3

4

D)

4

4

Question

Biology

Ayana Henson

20 March, 03:29

Suppose a mother carries two recessive genes for freckles (rr) and a father carries one recessive gene for freckles and one dominant gene for clear facial skin (Rr). What is the likelihood that their first child will have freckles?

A)

1

2

B)

1

4

C)

3

4

D)

4

4

+3

Answers (1)

Know the Answer?

Brooke Orozco · Answer 1

Answer - A

The ratio of a child with clear skin with that of freckled skin is 1:2.

When genotype rr mates with genotype Rr, the following genotypes are expected:

Rr = clear skin dominant

rr = freckled skin

Suppose a mother carries two recessive genes for freckles (rr) and a father carries one recessive gene for freckles and one dominant gene for clear facial skin (Rr). What is the likelihood that their first child will have freckles?A)12B)14C)34D)44

Suppose a mother carries two recessive genes for freckles (rr) and a father carries one recessive gene for freckles and one dominant gene for clear facial skin (Rr). What is the likelihood that their first child will have freckles?

A)

1

2

B)

1

4

C)

3

4

D)

4

4