Nota: A tradução desta entrada está atualmente em revisão de qualidade, portanto parte do conteúdo é exibida temporariamente apenas em inglês.
Este verbete ainda não foi traduzido para o seu idioma, portanto o original é exibido abaixo.
nucleoid
This term describes the genetic center of a prokaryote, specifically distinguishing it from the nucleus found in eukaryotes. The primary distinction lies in the lack of a surrounding nuclear membrane, meaning the genetic material is in direct contact with the cytoplasm. It evokes an image of a dense, tangled knot of DNA rather than a structured organelle.
Because it refers to a specific biological structure, it is used almost exclusively in scientific, academic, or medical contexts. It carries a neutral, descriptive connotation and is never used metaphorically in standard English.
Meanings
Examples
The bacterial DNA is concentrated in the nucleoid region.
Unlike eukaryotes, prokaryotes lack a membrane around the nucleoid.
I wonder how the nucleoid manages to fit such a long strand of DNA into a tiny cell.
Look at the slide and try to identify the nucleoid.
The nucleoid contains the primary genetic material of the bacterium.
Is the nucleoid always located in the center of the cell?
Proteins help organize the DNA within the nucleoid through supercoiling.
The nucleoid is an irregularly shaped region of the cytoplasm.
The nucleoid is an irregularly shaped region of the cytoplasm.