CUET · BIOLOGY · PYQ PAPER 2023
Which of the following in NOT true for sickle cell anemia?
A. It is caused by substitution of glutamic acid by valine.
B. It is caused by substitution of valine by glutamic acid.
C. Mutant haemoglobin molecule causes change in shape of RBCs from biconcave to biconvex.
D. Individual heterozygous for sickle cell anaemia can transmit the mutant gene to the offsprings.
Choose the correct answer from the options given below:
- A A and C only
- B B and C only
- C A and D only
- D B and D only
Answer & Solution
Correct Answer
(B) B and C only
Step-by-step Solution
Detailed explanation
Statements B and C are NOT true for sickle cell anemia. Statement B: It is caused by substitution of valine by glutamic acid. (Incorrect, it is glutamic acid by valine) Statement C: Mutant haemoglobin molecule causes change in shape of RBCs from biconcave to biconvex.…
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