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单词 nucleolar organizer region
释义

> as lemmas

nucleolar organizer region
nucleolar organizer n. (more fully nucleolar organizer region) a chromosomal region containing a cluster of ribosomal RNA genes, with which the nucleolus is associated.
ΚΠ
1934 B. McClintock in Zeitschr. f. Zellforschung u. Mikrosk. Anat. 21 322 The nucleolus develops through the activity of this body (refer[r]ed to as the nucleolar-organizing body or element).]
1941 Proc. Royal Soc. B. 130 144 The nucleolar organizer presumably lies in the secondary constriction seen in one of the A chromosomes at mitosis.
1975 Chromosoma 53 37 (title) Visualization of nucleolar organizer regions in mammalian chromosomes using silver staining.
1989 E. Lawrence Guide Mod. Biol. iii. 66 The rRNA genes are clustered in tandem repeats in regions in the chromosomes that come together to form the nucleolar organizer.
extracted from nucleolaradj.
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