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

The result was a type of cell known as a tetraploid cell, which contains four complete sets of chromosomes rather than the usual two.

From Science Daily ● Oct. 15, 2026

To study the consequences of these abnormalities, Cimini's team manipulated diploid cancer cells so they would duplicate their chromosomes without completing cell division.

From Science Daily ● Oct. 15, 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

This explained the mechanics of HeLa’s immortality: telomerase constantly rewound the ticking clock at the end of Henrietta’s chromosomes so they never grew old and never died.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot

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