Question

An X-linked gene causes a form of hemophilia. A woman who is a genetic carrier of this form of hemophilia mates with a normal man. Complete the Punnett Square by adding the gamete and offspring genotypes to determine their possible offspring.

Answer 1

Mother carrier genotype- XHXh

Father normal- XHY

When we cross multiply these genotypes, the resulting offsprings would be:

XHXH, XHXh, XHY, XhY

Their offsprings would be:

XHXH- 25% normal female

XHXh- 25% female carrier

XHY- 25% normal male

XhY-25% male with hemophilia