sister chromatid

noun
plural sister chromatids

Definition of sister chromatid

: either of the two identical chromatids that are formed by replication of a chromosome during the S phase of the cell cycle, are joined by a centromere, and segregate into separate daughter cells during anaphase The name cohesin is derived from its function in maintaining the cohesion of sister chromatids after DNA replication; this ensures their faithful segregation into daughter cells during mitosis.Science

First Known Use of sister chromatid

1914, in the meaning defined above

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The first known use of sister chromatid was in 1914

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Cite this Entry

“Sister chromatid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sister%20chromatid. Accessed 5 Aug. 2020.

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More Definitions for sister chromatid

sister chromatid

noun

Medical Definition of sister chromatid

: either of the two identical chromatids that are formed by replication of a chromosome during the S phase of the cell cycle, are joined by a centromere, and segregate into separate daughter cells during anaphase

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