
Also known as GO:0009295
The nucleoid (meaning nucleus-like) is an irregularly shaped region within the prokaryotic cell that contains all or most of the genetic material. The chromosome of a typical prokaryote is circular, and its length is very large compared to the cell dimensions, so it needs to be compacted in order to fit. In contrast to the nucleus of a eukaryotic cell, it is not surrounded by a nuclear membrane. Instead, the nucleoid forms by condensation and functional arrangement with the help of chromosomal architectural proteins and RNA molecules as well as DNA supercoiling. Genome length varies widely (ge
Wikidata facts
- Part of
- prokaryotic cell
Show 1 more fact
- exact match
- purl.obolibrary.org/obo/GO_0009295
Sources (2)
via Wikidata · CC0
Article · 日本語
核様体(かくようたい、nucleoid)とは、原核細胞内に観察されるゲノムDNAが折り畳まれた構造体。真核細胞の核とは異なり、膜構造(核膜)で囲まれてはいない。原核細胞の染色体と呼ばれることもある。
Abstract from DBpedia / Wikipedia · CC BY-SA