Sita and Ram have their first child. Sita know her blood ty…

Biology Principles of Inheritance and Variation Skill Builder Single Correct MCQ

Published on: August 21, 2026

Sita and Ram have their first child. Sita know her blood type is A, but Ram does not know his blood type. However, Ram knows that both his mother and father have type B blood, the first child is a boy named Kush. Kush has type O blood,. Sita and Ram do not understand how this happened. Which of the following is the best explanation?

Sita's genotype is

and Ram's genotype is

; thus, skip expressing the

phenotype

Sita's genotype is

and Ram's genotype is

; thus, skip expresses the

phenotype

Because Ram's parents are both type B, Ram is not Kush's father

Kush's blood type will need to be checked after his first month of life, if Sita and Ram want to know his blood type, as it takes about a month for the blood type to develop in a new born child

Text Solution

Verified by Experts

The correct answer is:

Given that,

Blood type of Sita is A, thus the genotype could be or
The blood type of mother and father is , thus the genotype could be or . From this we can conclude that the blood type of Ram could be or having genotype or
The blood type of their children, Kush, has type O blood only when Sita's genotype is and Ram's genotype is