Answer:
Explanation:
if woman is homozygous than 0%
if she is heterozygous than 25% chance of having a son and he is color blind
The Earth is around 4.6 billion years old. Earth has a slightly squashed sphere, measuring 7,973 miles (12,756 km) in the diameter at the equator.
Answer:
the right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve.
There is no answer that is right except for C. Natural Selection.
Genetic Recombination doesn't change gene frequency;nor does migration. (Unless it's local)
Mutation could be the answer, but since mutations are too rare to really power Evolution, the only logical answer is Natural Selection.