Definitions for y chromosome
Random House Webster's College Dictionary
Y chromosome(n.)
a sex chromosome of humans and most mammals that is present only in males and is paired with anXchromosome.
Category: Genetics
Ref: Compare X chromosome.
Origin of Y chromosome:
1920–25
Princeton's WordNet
Y chromosome(noun)
the sex chromosome that is carried by men
"human males normally have one X chromosome and one Y chromosome"
Wiktionary
Y chromosome(Noun)
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.
U.S. National Library of Medicine
Y Chromosome
The male sex chromosome, being the differential sex chromosome carried by half the male gametes and none of the female gametes in humans and in some other male-heterogametic species in which the homologue of the X chromosome has been retained.
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