Dictionary

Y chromosome

noun

biology : a chromosome that is found with the X chromosome in the cells of male mammals and that is absent from the cells of female mammals

Full Definition of Y CHROMOSOME

:  a sex chromosome that is characteristic of male cells in species in which the male typically has two unlike sex chromosomes — compare x chromosome

First Known Use of Y CHROMOSOME

1911

Y chromosome

noun \ˈwī-\   (Medical Dictionary)

Medical Definition of Y CHROMOSOME

:  a sex chromosome that is characteristic of male cells in species in which the male typically has two unlike sex chromosomes—compare x chromosome

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