ALL meanings of y chromosome
y chro·mo·some
Y y - noun y chromosome sex chromosome present in males 1
- noun y chromosome a sex chromosome of humans and most mammals that is present only in males and is paired with an X chromosome. 1
- countable noun y chromosome A Y chromosome is the chromosome in a man's cells which will produce a male baby if it joins with a female's X chromosome. Y chromosomes are associated with male characteristics. Compare X chromosome. 0
- noun y chromosome the sex chromosome that occurs as one of a pair with the X-chromosome in the diploid cells of the males of many animals, including humans 0
- noun y chromosome (genetics) 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. 0