chromatin

chromatin — noun

1. the material inside the nucleus of a cell that consists of DNA wound around prot

1.名詞B2
釋義

the material inside the nucleus of a cell that consists of DNA wound around proteins called histones and coils tightly to form chromosomes when the cell divides

例句

During cell division, chromatin coils tightly to form the visible chromosomes in the nucleus.

chromatin + coil/condense during cell division

The biology students examined how chromatin is organised in the cell nucleus.

passive: chromatin is organised

用法筆記

Chromatin is an uncountable mass noun — it does not take a plural form. For countable structures formed from chromatin during cell division, use 'chromosome' instead.

常見錯誤

The cell contains 46 chromatins.
The cell contains 46 chromosomes.
💡chromatin is a material, not a countable structure; the individual structures formed during division are called chromosomes.