Hemophilia is a genetic disorder that causes a protein required for normal blood clotting to be missing.

in a cross with a mother who carries the allele for hemophilia and a father who has normal blood clotting what would be the genotypes of the parents?
a. xcxc, xcy
b. xcxc, xcy
c. xcxc, xcy
d. xcxc, xcy

The correct answer would be option B. XCXc, XCY

Explanation:

Hemophilia is a rare X-linked recessive disorder, which means if any male individual carry a X chromosome with recessive allele (Xc) he will be hemophilic, however,  in females it will express itself only if she has both recessive alleles of X chromosome (XcXc) or she will be carrier of the disease if she has one dominant and one recessive allele of the disease (XcXC).

Hence, the genotype of carrier mother and a normal father would be XCXc and XCY respectively.

Thus, the correct answer is option B. XCXc, XCY

is in the form atp or adenosine triphosphate

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion