Q38 / 200 · MHT CET - Medical 2026 (24 April Shift 1) · Biology

Given below are two statements.
Statement I - Only males can suffer from haemophilia.
Statement II - The gene for normal clotting of blood in human is recessive.
In the light of above statements, select the correct option given below:

  • A
    Both statement I and statement II are correct.
  • Correct answer
    B
    Both statement I and statement II are incorrect.
  • C
    Statement I is correct but statement II is incorrect.
  • D
    Statement I is incorrect but statement II is correct.

Solution

Haemophilia is an X-linked recessive disorder. Females can also suffer from haemophilia if they inherit the defective gene from both parents (i.e., they are homozygous recessive, $X^h X^h$). Therefore, Statement I is incorrect.

The gene responsible for normal blood clotting is dominant, whereas the defective gene causing haemophilia is recessive. Therefore, Statement II is also incorrect.

Both Statement I and Statement II are incorrect.

Answer: Both statement I and statement II are incorrect.

Hence, the correct answer is option: 'B'.

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