Which of the following statements about Rh factor incompatibility is true?
A) The damage caused by Rh incompatibility can be avoided if the mother receives a blood transfusion during delivery.
B) Rh-positive blood is dominant and Rh-negative blood is recessive, so the chances are good that a baby will be Rh-positive.
C) Rh-positive babies are routinely given a vaccine at birth to prevent the buildup of harmful Rh antibodies.
D) The harmful effects of Rh incompatibility can be prevented if the newborn is immediately placed on a diet low in phenylalanine.

Question

Quizplus · Accepted Answer

Rh-positive blood is indeed considered dominant over Rh-negative blood, which means if one parent contributes an Rh-positive allele and the other an Rh-negative allele, the child is likely to be Rh-positive. This genetic principle explains why Rh-positive blood is more common.

Which of the Following Statements About Rh Factor Incompatibility Is