What would the blood cells look like for an individual that is heterozygous for sickle-cell anemia?​

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256

As a small change in a person's dna can cause a genetic disorder