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Definition 2025
Chromatid
chromatid
chromatid
See also: Chromatid
English

In this schematic diagram of a human metaphase chromosome, (1) refers to a chromatid: one-half of the two identical double helices of the already replicated chromosome, both joined together by the centromere (2). During cell division, the identical copies (together called a sister chromatid pair) are divided over the two daughter cells, each double helix then constituting a chromosome in its own right. The short (3) and long arm (4) of the chromatid to the right are also marked.
Noun
chromatid (plural chromatids)
- (genetics) After DNA replication either of then the two connected double-helix strands of a metaphase chromosome that separate during mitosis.
Translations
Either of the two strands of a chromosome that separate during mitosis
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