Most human cells have _____________ copies of each chromosome.

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Multiple Choice

Most human cells have _____________ copies of each chromosome.

Explanation:
Humans are diploid, so body (somatic) cells carry two copies of each chromosome—one inherited from each parent. For autosomes, that means 23 pairs, totaling 46 chromosomes in a typical cell. The sex chromosomes are X and Y in males and two Xs in females, but in all cases there are two chromosomes present for the regions that carry genes. This arrangement allows genes to exist in two versions (alleles) and is restored when the haploid gametes fuse during fertilization.

Humans are diploid, so body (somatic) cells carry two copies of each chromosome—one inherited from each parent. For autosomes, that means 23 pairs, totaling 46 chromosomes in a typical cell. The sex chromosomes are X and Y in males and two Xs in females, but in all cases there are two chromosomes present for the regions that carry genes. This arrangement allows genes to exist in two versions (alleles) and is restored when the haploid gametes fuse during fertilization.

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