Question

3. A child has brown hair and brown eyes. His
father has brown hair and blue eyes. His mother
has red hair and brown eyes. The best explana-
tion for the child having brown hair and brown
eyes is that
(1) a gene mutation occurred that resulted in
brown hair and brown eyes
gene expression must change in each genera-
tion so evolution can occur
(3) the child received genetic information from
each parent
(4) cells from his mother's eyes were present in
the fertilized egg
7.

Answer 1

Answer:

25%

Explanation:

Parent 2's phenotype is dominant in the first trait, recessive in the second trait, and dominant in the third trait. Parent 2 is predicted to have 1664 children, or 25% of them, with the same trait. AabbCC and AabbCc are their genotypes.