Showing results for "chromosomes"

• plural of chromosome.

chromosomes

Cultural  

1. The small bodies in the nucleus of a cell that carry the chemical “instructions” for reproduction of the cell. They consist of strands of DNA wrapped in a double helix around a core of proteins. Each species of plant or animal has a characteristic number of chromosomes. For human beings, for example, it is forty-six.

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In humans, sex is determined by two chromosomes: an X-chromosome, which is female, and a Y-chromosome, which is male. (See sex chromosomes.)

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chromosomes

Telomeres are protective structures located at the ends of chromosomes.

From Science Daily ● Aug. 26, 2026

Since that time, chromosomes have repeatedly fused, separated, and been rearranged as new animal lineages emerged.

From Science Daily ● Aug. 25, 2026

They can reveal which genes an animal possesses without showing exactly where those genes are positioned along its chromosomes.

From Science Daily ● Aug. 25, 2026

The sex specific genetic switches were much less concentrated on the sex chromosomes than researchers anticipated.

From Science Daily ● Aug. 20, 2026

Morgan’s work had pinpointed their location on chromosomes, where they were supposedly strung like beads on a wire.

From "The Gene" by Siddhartha Mukherjee

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