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Y chromosome
noun
- a sex chromosome of humans and most mammals that is present only in males and is paired with an X chromosome.
Y-chromosome
noun
- See X-chromosomethe 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 Compare X-chromosome
Y-chromosome
- The sex chromosome that is paired with an X-chromosome in males. Most of the genes on the X-chromosome determine physical attributes associated with males, such as the development of testes.
- See more at sex chromosomeSee Note at sex
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Word History and Origins
Origin of Y chromosome1
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Example Sentences
Carried distinctly through men, the Y chromosome only gives a portion of the entire mitochondrial DNA.
There is in the male, in addition to the X, also a Y chromosome, which acts as its mate in synapsis and reduction.
The X chromosome in the male is represented by an open bar, the Y chromosome is bent.
Other evidence has shown that the Y chromosome of the male is indifferent, so far as these Mendelian factors are concerned.
The females that gave these results were found by Bridges to have two X's and a Y chromosome.
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