Question

The following mating and subsequent offspring of the union between a male with blood type AB and blood type MN with a female of blood type O and N. What are the expected genotypic andphenotypic proportions in the children? Assuming that the first born child is a male, what is the probability that he will be AB and MN?​

Answer 1

The genotypic and phenotypic proportions in the children would be 1/4 ABMN, 1/4 ABN, 1/4 AMN, 1/4 AN. The probability of the first born child being AB and MN would be 1/4.

Step-by-step explanation:

In a mating between a male with blood type AB and blood type MN and a female with blood type O and N, the possible genotypic and phenotypic proportions in their children would be:

• Genotypic: 1/4 ABMN, 1/4 ABN, 1/4 AMN, 1/4 AN
• Phenotypic: 1/4 type AB with both antigens, 1/4 type A with antigen M, 1/4 type A with antigen N, 1/4 type A with neither antigen

Assuming the first born child is a male, the probability that he will have blood type AB and MN would be 1/4.