Question

Hemophilia is an X-linked recessive disorder that is passed through generations and can be traced by using a pedigree. Ann and Marie are half-filled circles. Fred and Luke are filled squares. Who has hemophilia in the pedigree that is shown? John and Ann Fred and Luke John, Charles, Jack, and Irene Ann and Marie.

Answer 1

Those with Hemophilia in the pedigree would be Fred and Luke.

For every human pedigree:

• Affected individuals are completely filled or shaded
• Carrier individuals are half-filled or half-shaded
• Unaffected individuals are unshaded or filled

Also:

• Males are represented by squares
• Females are represented by circles

Hence, if Fred and Luke are filled squares, it means both are males and are affected for the disorder.

More on human pedigrees can be found here: https://brainly.com/question/5624004?referrer=searchResults

Answer 2

It's B. Fred and Luke.