What is the size and shape of the nucleus? The size and shape of the nucleus vary according to the cell type. It is generally elongated, ovoid, sp...
What is the size and shape of the nucleus?
The size and shape of the nucleus vary according to the cell type.
It is generally elongated, ovoid, spherical or lobulated.
The nucleus contains genetic material, DNA, which is wrapped in basic proteins, histones, forming chromatin.
The chromatin is classified into euchromatin (diffuse and transcribed) and heterochromatin (condensed and generally inactive) according to the degree of condensation.
During cell division, chromatin condenses into chromosomes and the nuclear membrane disintegrates.
The size and shape of the nucleus vary according to the cell type.
It is generally elongated, ovoid, spherical or lobulated.
The nucleus contains genetic material, DNA, which is wrapped in basic proteins, histones, forming chromatin.
The chromatin is classified into euchromatin (diffuse and transcribed) and heterochromatin (condensed and generally inactive) according to the degree of condensation.
During cell division, chromatin condenses into chromosomes and the nuclear membrane disintegrates.
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O tamanho e a forma do núcleo variam de acordo com o tipo de célula. Geralmente, ele é alongado, ovóide, esférico ou lobulado. O núcleo contém material genético, DNA, que é envolvido em proteínas básicas, histonas, formando cromatina. A cromatina é classificada em eucromatina (difusa e transcrita) e heterocromatina (condensada e geralmente inativa) de acordo com o grau de condensação. Durante a divisão celular, a cromatina se condensa em cromossomos e a membrana nuclear se desintegra.
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