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NDA 2017 GAT · General Knowledge · Genetics and Heredity · hard

The number of autosomes in a normal human body cell is

Single correct option

The number of autosomes in a normal human body cell is
  1. A. 46
  2. B. 44
  3. C. 23
  4. D. 22
Show answer and solution

Answer: (B) 44

A human body cell has 46 chromosomes, comprising 22 pairs of autosomes (44) and one pair of sex chromosomes. The number 23 is the haploid number in a gamete, and 22 is the number of autosome pairs. Therefore, the answer is 44. The sex chromosomes are XX in females and XY in males.
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Original question written in the NDA 2017 GAT pattern and checked twice for the correct answer. Not an official question paper. How we write and check questions · Corrections policy · Report a mistake