KCET · BIOLOGY · STD 12 - 4. Principles of Inheritance and Variation
ABO blood type in man is an example of
A. Pleiotropy
B. Incomplete dominance
C. Co-dominance
D. Multiple allelism
Select the code for the correct answer from the options given below.
- A A, B and C only
- B A, C and D only
- C C and D only
- D A, B and D only
Answer & Solution
Correct Answer
(C) C and D only
Step-by-step Solution
Detailed explanation
(C) C and D only,
In human blood type AB, allels that determine the A, B, and AB blood types are a good example of co-dominance. In addition to being coded by co-dominant alleles, there are ABO blood types which are coded by more than the two allels - A, B and O. Thus, ABO blood types contain multiple allels.
In human blood type AB, allels that determine the A, B, and AB blood types are a good example of co-dominance. In addition to being coded by co-dominant alleles, there are ABO blood types which are coded by more than the two allels - A, B and O. Thus, ABO blood types contain multiple allels.
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