Hemophilia is an X-linked recessive disorder (Xh) that is passed through generations and can be traced by using a pedigree. Based on the pedigree that is shown, which describes John? A)carrier for hemophilia B)expresses hemophilia C)does not have hemophilia D)expresses hemophilia and died of complications

C) Does not have hemophilia

Explanation:

When a pedigree is half shaded, the person is a carrier.

When a pedigree is not shaded, the person doesn't express the gene.

When a pedigree is completely shaded, the person is affected.

Square usually is male and circles are usually female.

Since John is the non-shaded square and parent of 4 offspring, he does not have hemophilia. However, his wife is a carrier, and that's how their offspring have hemophilia.