How many chromosomes do humans have in their somatic cells?

Alberta Grade 9 Science Test: Master your knowledge with our comprehensive practice resources. Featuring engaging flashcards and detailed multiple-choice questions with explanations, get ready to succeed!

Multiple Choice

How many chromosomes do humans have in their somatic cells?

Explanation:
Somatic cells are diploid, carrying two complete sets of chromosomes. Humans have 23 chromosome pairs, for a total of 46 chromosomes in each somatic cell. Each pair comes from one parent, with 22 autosome pairs and 1 pair of sex chromosomes (XX or XY). Reproductive cells are haploid, containing 23 chromosomes, so fertilization restores the full 46 in a new individual.

Somatic cells are diploid, carrying two complete sets of chromosomes. Humans have 23 chromosome pairs, for a total of 46 chromosomes in each somatic cell. Each pair comes from one parent, with 22 autosome pairs and 1 pair of sex chromosomes (XX or XY). Reproductive cells are haploid, containing 23 chromosomes, so fertilization restores the full 46 in a new individual.

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