Simple Definition of Y chromosome
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
Seen and Heard
What made you want to look up Y chromosome? Please tell us where you read or heard it (including the quote, if possible).