Advertisement
Advertisement
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
- 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 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
亚洲网紅露点 History and Origins
Origin of Y chromosome1
Example Sentences
Genes found on the Y chromosome are only active in cells that have the XY chromosome.
By contrast, there was a lot of diversity in the Y chromosomes, which is passed from father to son, indicating that men from lots of different families married into the community.
"In fact, scientists used to believe that the Y chromosome lacked genetic variety, which we believed meant that it didn't contribute much to species diversity."
To fully understand this complex swath of the American electorate, there鈥檚 been no shortage of wide-lens examinations into the political leanings of the Y chromosome set.
Some say it is impossible to establish that everyone with a Y chromosome is a male and everyone without a Y chromosome is a female, and that more data is needed.
Advertisement
Advertisement
Advertisement
Advertisement
Browse