Web Results

XY sex-determination system - Wikipedia

en.wikipedia.org/wiki/XY_sex-determination_system

... the chromosomal XY sex-determination system, i.e. the fact that males have XY sex chromosomes and females have XX ...

X chromosome - Genetics Home Reference

ghr.nlm.nih.gov/chromosome/X

Some genes on the X chromosome escape X-inactivation. Many of these genes are located at the ends of each arm of the X chromosome in areas known as the ...

WHO | Gender and Genetics

www.who.int/genomics/gender/en/index1.html

The Y chromosome is small, carries few genes, and has abundant repetitive sequence, while the X ...

Y chromosome - Genetics Home Reference

ghr.nlm.nih.gov/chromosome/Y

The Y chromosome is one of the two sex chromosomes in humans (the other is the X chromosome). The sex chromosomes form one of the 23 pairs of human ...

The Y chromosome: beyond gender determination - National ...

www.genome.gov/27557513/the-y-chromosome-beyond-gender-determination/

May 30, 2014 ... Many generations ago the Y chromosome was large, and contained as many genes as the X chromosome. Now it is a fraction of its past size ...

Men And Women: The Differences Are In The Genes -- ScienceDaily

www.sciencedaily.com/releases/2005/03/050323124659.htm

Mar 23, 2005 ... "The effects of these genes from the inactive X chromosome could explain some of the differences between men and women that aren't ...

23andMe - Genetics 101: Where do your genes come from?

www.23andme.com/gen101/origins/

The X and Y Chromosomes Determine Your Sex. One chromosome pair - the sex  ...

Big difference between the X and Y chromosomes - Understanding ...

genetics.thetech.org/ask/ask456

Mar 14, 2012 ... But as you'll see, all the genes on the Y chromosome aren't enough to make a ... Boys have an X and a Y and girls have two X chromosomes.

Y Chromosome Is More Than a Sex Switch | Science | AAAS

www.sciencemag.org/news/2014/04/y-chromosome-more-sex-switch

Apr 23, 2014 ... Here to stay. The Y chromosome is small compared with the X, but is required to keep levels of some genes high enough for mammals to ...

X-linked genes and mental functioning - Human Molecular Genetics

hmg.oxfordjournals.org/content/14/suppl_1/R27.full

Apr 15, 2005 ... Of these, 333 (27%) mapped to the X-chromosome, suggesting X-linked genes play a disproportionate role in the development of human ...