The XY sex-determination system is the sex-determination system found in
humans, most other ... Males have two distinct sex chromosomes (XY), and are
called the ... This and other factors result in ...
Mar 14, 2012 ... What is the big difference about the X and Y chromosomes that make the
difference between male and female people? Do the cells just ...
Mar 23, 2005 ... In contrast, women have two copies of the X chromosome. ... X chromosome
could explain some of the differences between men and women ... 15 percent of
the genes are expressed at higher levels in females than in males.
The key is the X chromosome, the "female" sex chromosome that all men and ...
Females can differ from each other almost as much as they do from males in the
way ... candidate genes that could explain differences between men and women.
Apr 26, 2014 ... Many of the remaining Y chromosome genes appear to have little if any role ... “
All of the myriad differences between human males and females ...
Aug 3, 2015 ... Photo credit: Male and female. ... But the key to difference between men and
women – and chimps – lies not just in the number of ... But the Y chromosome is
not all male-specific; 24 genes in its top little bit are shared with the ...
May 30, 2014 ... The X and Y chromosomes, also known as the sex chromosomes, determine ...
default - female development - and cause the development of the male ... of
differences in biology, health and disease between men and women.
So for all of the genes on the autosomes, both males and females have two
copies. ... The differences in sex chromosomes between males and females
leads to ...
Differences in Male and Female Chromosomes. The main differences between
males and females are the X and Y chromosomes. Among humans, two X ...
Oct 24, 2013 ... The genetic difference between men and women is 15 times greater than ... We'
ve been taught that other than X and Y, males and females are ...