Question
Biology Question on Principles of Inheritance and Variation
A child with mother of blood group A and father of blood group AB, will not have which of the following blood group?
A
A
B
B
C
AB
D
O
Answer
O
Explanation
Solution
- The ABO system encompasses four primary blood groups: A, B, AB, and O
- Each characterized by specific antigens.
- Blood type A carries antigen A, blood type B carries antigen B, blood type AB carries both antigens, while blood type O lacks any antigen.
- The inheritance of blood groups is governed by the ABO gene.
- When a child inherits one or more alleles for A, B, or O, they belong to one of the four blood groups: A, B, AB, or O.
- Allele O is considered recessive, whereas alleles A and B are codominant.
- During inheritance, the child receives one ABO allele from each parent.
- For instance, the following table demonstrates the potential blood types inherited by a child from their parents:
As per the table, it can be concluded that a child born to a mother with blood type A and a father with blood type B will not have blood group O.
So, the correct option is (D): O