Y chromosome

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English[edit]

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 Y chromosome on Wikipedia

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Etymology[edit]

Named by Nettie Stevens in 1905 using the next letter in sequence following the naming by Hermann Henking in 1890 of the X chromosome. The brief resemblance in the appearance of the X and Y chromosomes to the letters "X" and "Y" respectively during cell division is entirely coincidental.[1]

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Noun[edit]

Y chromosome (plural Y chromosomes)

  1. (genetics) A mammalian sex chromosome, occurring only in male cells. Cells of females have a pair of X chromosomes while cells of males have an X and a Y.

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References[edit]

  1. ^ David Bainbridge, The X in Sex: How the X Chromosome Controls Our Lives, pages 65-66, ISBN 0674016211.