Lesson: Chapter 20 — Heredity

20.5. Sex determination 1 of 6 Reset answers

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Question 1

How many autosomes are there in a human body cell?

A 44 B 22 C 46 D 23

The right answer is the one marked above.

44. A human body cell has 46 chromosomes: 44 autosomes in 22 homologous pairs, plus 2 sex chromosomes.

22 is the number of autosome pairs, and 23 is the number of chromosomes in a gamete. Read carefully which is being asked for.

Answer the question to continue.