Question

A scientist is examining a pedigree that includes several generations of an organism with XX/XY chromosome sex determination.

Which pattern of inheritance would support the hypothesis that the trait being studied is a recessive sex-linked trait found on the X chromosome?

B

A. The trait is only expressed in males who have a father with the trait. The trait is expressed in half of the female organisms and all of the

male organisms.

C. The trait is mostly expressed in males who have a maternal grandfather with

the trait.

D.

The trait is mostly expressed in females who have a paternal grandmother with the trait.

Answer 1

C. The trait is mostly expressed in males who have a maternal grandfather with the trait.

Step-by-step explanation:

A pedigree chart displays a family tree and shows the members of the family who are affected by a genetic trait.