Individuals have 23 _____ in every cell of the body.

Question

BlackTom AI · Accepted Answer

The question asks about a characteristic of human cells.
Option 1: genes. While genes are located on chromosomes, each cell contains many genes, not a specific count of 23. The statement misrepresents what is counted as 23.
Option 2: pairs of chromosomes. In human somatic (body) cells, there are 23 pairs of chromosomes, totaling 46 individual chromosomes. This option correctly reflects the diploid number that characterizes most of the body's cells.
Option 3: pairs of genes. Genes come in many copies and arrangements, but there isn’t a fixed number described as 'pairs of genes' in every cell; the concept doesn’t match standard cytogenetic counts.
Option 4: chromosomes. While it is true that chromosomes exist in cells, the phrasing '23 ... in every cell' is ambiguous unless specified as '23 pairs' because humans have 46 chromosomes in total, arranged as 23 pairs. Without mentioning pairs, this option is incomplete for the standard counting in human cells.

Individuals have 23 _____ in every cell of the body.单项选择题

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