| nucleolar | <biology> Of or pertaining to the nucleolus of a cell. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| nucleolar chromosome | A chromosome regularly associated with a nucleolus. (05 Mar 2000) |
| nucleolar organiser | <molecular biology> Loop of DNA that has multiple copies of rRNA genes. See: nucleolus. (18 Nov 1997) |
| nucleolar zone | <molecular biology> Loop of DNA that has multiple copies of rRNA genes. See: nucleolus. (18 Nov 1997) |
| nucleolar-nuclear ratio | Ratio of volume of nucleolus to volume of nucleus, usually increased in malignant neoplasms. (05 Mar 2000) |
| nucleoli | Plural of nucleolus. (05 Mar 2000) |
| nucleoliform | Resembling a nucleolus. Synonym: nucleoloid. (05 Mar 2000) |
| nucleolin | <protein> A major nucleolar protein (100 kD) that functions as a shuttle protein between nucleus and cytoplasm and is also found on the cell surface. Nucleolin binds midkine and heparin binding growth associated molecule (HB GAM). Medline 1995 (18 Nov 1997) |
| nucleoloid | Synonym: nucleoliform. Origin: nucleolus + G. Eidos, resemblance (05 Mar 2000) |
| nucleolonema | The irregular network or rows of fine ribonucleoprotein granules or microfilaments forming most of the nucleolus. Origin: nucleolus + G. Nema, thread (05 Mar 2000) |
| nucleolus | <cell biology> A small dense body (sub organelle) within the nucleus of eukaryotic cells, visible by phase contrast and interference microscopy in live cells throughout interphase. Contains RNA and protein and is the site of synthesis of ribosomal RNA. The nucleolus surrounds a region of one or more chromosomes (the nucleolar organiser) in which are repeated copies of the DNA coding for ribosomal RNA. (18 Nov 1997) |
| nucleolus organiser | <molecular biology> Loop of DNA that has multiple copies of rRNA genes. See: nucleolus. (18 Nov 1997) |
| nucleolus organiser region | The chromosome region which is active in nucleolus formation and which functions in the synthesis of ribosomal RNA. (12 Dec 1998) |
| nucleomicrosome | One of the minute particles or granules making up the substance of the cell nucleus. Synonym: nucleomicrosome. Origin: karyo-+ G. Mikros, small, + soma, body (05 Mar 2000) |
| nucleon | <physics> Any particle found in the structure of an atomic nucleus, i.e., neutron or proton. (16 Dec 1997) |