Q: Which one of the following examples of genetic disorder or disease is due to the numerical abnormalities in the sex chromosome?
(a)Turner's syndrome
(b)Down's syndrome
(c)Haemophilia
(d)Alkaptonuria
Correct Answer: (a)
The correct answer is (c): Haemophilia. Subject: Science & Technology | Sub-topic: Biotechnology & Genetics Note: This answer was determined through AI-based research. Verify against the official answer key when available.