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单词 θ19129
释义
the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > part or section (7)
satellite1921

Cell Biology. A short segment of a chromosome located at an end of, or within, one of its arms, demarcated by a single constriction (narrowed…

trabant1926

Cytology. = satellite, n. 9.

secondary constriction1932

Connected with what is second in local position. (Cytology): a chromosomal constriction not associated with the centromere.

puff1936

Cell Biology. A transient expansion of a region of a polytene chromosome associated with RNA synthesis. Cf. puffed, adj. 2d, puffing, n.2 2c.

microsatellite1962

Genetics. A very small chromosomal satellite (satellite, n. 9).

pseudogene1977

a DNA sequence that is very similar to that of a functional gene but is not transcribed or translated, e.g. as a result of mutations that have…

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