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Related to Y chromosome: Y chromosome Adam
Y chromosomeor Y-chro·mo·some (wī′krō′mə-sōm′)
The sex chromosome associated with male characteristics in mammals, not occurring in females and occurring with one X chromosome in the male sex-chromosome pair.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a sex chromosome of humans and most mammals that is present only in males and is paired with an Xchromosome. Compare X chromosome.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||Y chromosome - the sex chromosome that is carried by men; "human males normally have one X chromosome and one Y chromosome"|
sex chromosome - (genetics) a chromosome that determines the sex of an individual; "mammals normally have two sex chromosomes"
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