Question

Which of the following disorder is seen in human female only? (1) Tumner's syndrome(2)Down's syndrome (3)Haemophilia (4)Klinefelter's syndrome

Answer 1

Answer:

(1) Turner's Syndrome

Explanation:

• In turner's syndrome, x chromosome monosomy is seen and since female chromosome make up is 100% X (XX).  unlike male XY. It is seen in female.
• In down's syndrome, trisomy is found on 21 st chromosome.  So it is not sex linked. Can occur both in male and female.
• Hemophilia is a disorder where female is a carrier and since males have XY. The X is responsible for the disorder.
• Klinefelter's syndrome occurs when male has an extra chromosome ( trisomy).

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