Lexi1 - chromatid - definition and examples

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chromatid

chromatid (noun) /ˈkɹəʊmətɪd/

In this schematic diagram of a human metaphase chromosome, refers to a chromatid: one-half of the two identical double helices of the already replicated chromosome, both joined together by the centromere. During cell division, the identical copies are divided over the two daughter cells, each double helix then constituting a chromosome in its own right. The short and long arm of the chromatid to the right are also marked.

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(genetics) After DNA replication, either of the two connected double-helix strands of a metaphase chromosome that separate during mitosis.