Chromosomes Are So 20th Century - Male Genes Determine Baby Gender, Says Study
Sunday, December 14, 2008 - 15:56
in Health & Medicine
Men determine the sex of a baby depending on whether their sperm is carrying an X or Y chromosome. An X chromosome combines with the mother's X chromosome to make a baby girl (XX) and a Y chromosome will combine with the mother's to make a boy (XY). A Newcastle University study suggests that an as-yet undiscovered gene controls whether a man's sperm contains more X or more Y chromosomes, which affects the sex of his children. On a larger scale, the number of men with more X sperm compared to the number of men with more Y sperm affects the sex ratio of children born each year. read more
Read the whole article on Scientific Blogging
More from Scientific Blogging
Related
- Sex disorders linked to Y chromosome's instabilityThu, 3 Sep 2009, 12:51:43 EDT
- Male sex chromosome losing genes by rapid evolution, study revealsThu, 16 Jul 2009, 20:22:46 EDT
- Chromosomes dance and pair up on the nuclear membraneFri, 13 Nov 2009, 16:36:12 EST
- How chromosomes meet in the dark -- Switch that turns on X chromosome matchmakingFri, 26 Dec 2008, 23:08:29 EST
- 'Achilles' heel' in Y chromosome linked to sex disordersThu, 3 Sep 2009, 12:51:34 EDT