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

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

Instead, most were located on autosomes, the non sex chromosomes shared by males and females.

From Science Daily ● Aug. 20, 2026

Under this genetic system, females develop from fertilized eggs and possess two sets of chromosomes, while males develop from unfertilized eggs and have only one set.

From Science Daily ● Aug. 15, 2026

The results suggest that the repeated emergence of complex insect societies may depend more on biological traits specific to certain evolutionary groups than on the way chromosomes are inherited.

From Science Daily ● Aug. 15, 2026

But a second mechanism of generating genetic diversity exists: genetic information can be swapped between chromosomes.

From "The Gene" by Siddhartha Mukherjee