Y chromosome
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Y chromosome

noun

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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