Which infant is more likely to have Rh incompatibility?
A) An infant with an Rh-negative mother and Rh-positive father homozygous for the Rh factor
B) An infant who is Rh negative and whose mother is Rh negative
C) An infant with an Rh-negative mother and Rh-positive father heterozygous for the Rh factor
D) An infant who is Rh positive and whose mother is Rh positive

Question

Quizplus · Accepted Answer

If the mother is Rh negative and the father is Rh positive and homozygous for the Rh factor,all the offspring will be Rh positive.Only Rh-positive offspring of an Rh-negative mother are at risk for Rh incompatibility.If the mother is Rh negative and the father is Rh positive and heterozygous for the factor,there is a 50% chance that each infant born of the union will be Rh positive,and a 50% chance that each will be born Rh negative.

Which Infant Is More Likely to Have Rh Incompatibility