Explanation:
I think the answer is contraceptive pills but not sure
Answer:
D. That is a D.N.A Molecule, which stores your gene's/ info
The red-green color blindness is a recessive X-linked trait. The females are not affected unless both the X chromosomes have the affected allele. Mostly, the females are the carriers, and the males are affected as they have only one X chromosome. In the given pedigree, the father of Irene have the normal allele, while her mother is a carrier. However, Irene is neither a carrier nor affected. This means that she carries normal alleles on both X chromosomes. Hence, her allele combination is
.
B-Kidneys
The kidneys act as filters that strain urea and excess salts from the bloodstream to release them in the urine.