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BIOLOGY

JAMB 2009 - Question 44

Biology 2009 JAMB Past Questions - Question 44: . A health condition that is known to have resulted from gene mutation is

Choose the most appropriate option for the gap .

. A health condition that is known to have resulted from gene mutation is

A: haemophilia

B: colour blindness

C: sickle-cell anaemia

D: anaemia.

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Correct Answer

Explanation

it is a fatal disease caused by the formation of abnormal hemoglobin(s) instead of the normal 'A' caused by mutuation of the genes responsible for its production. Haemophila and colour blindness are sex-linked trait carried by the X chromosomes only. they are also caused by the mutuation of the genes responsible for their production. however they do not present serious health problem. Anaemia is shortage of the red blood cells in body.