How many chromosomes do people normally have?

How many chromosomes do people normally have?

  • (A) 20 pairs
  • (B) 23 pairs
  • (C) 40 pairs
  • (D) 50 pairs

 

Correct option is (B) 23 pairs. People have 23 pairs of chromosomes, for a total 46 chromosomes. These pairs consists of 22 pairs of autosomes and 1 pair sex chromosomes (XX for females and XY for males).
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