STANDARDZoology-Genetics

STANDARD Zoology Chromosomal Disorders MCQ Question

Type: MCQ-conceptual-Medium

Based on Lyon's hypothesis, what will be the number of Barr bodies found in a human female suffering from Down's syndrome

A

0

B

1

C

2

D

3

Correct Answer

Option B

Detailed Explanation

Down's syndrome is characterized by trisomy 21, resulting in one Barr body in females due to one inactive X chromosome.

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