XY sex-determination system - Wikipedia, the free encyclopedia Females have two of the same kind of sex chromosome (XX), and are called the homogametic sex. Males have two ...
XXXY syndrome - Wikipedia, the free encyclopedia 48, XXXY syndrome is a sex chromosome aneuploidy in which males have two extra X chromosomes. Human cells ...
Sex-determination system - Wikipedia, the free encyclopedia 1.1 XX/XY sex chromosomes; 1.2 XX/X0 sex determination; 1.3 ZW sex chromosomes; 1.4 UV sex chromosomes ...
X chromosome - Wikipedia, the free encyclopedia It is less common for affected males to have two or three extra X chromosomes ( 48,XXXY or 49,XXXXY) or extra copies ...
what is xx and xy chromosome? | Yahoo Answers 23 Aug 2006 ... The XX and XY chromosomes are the pair of chromosomes that determine sex in humans. People with ...
How Chromosomes Determine Sex - Biology - About.com Sex is determined by the presence or absence of certain chromosomes. ... Sex Chromosomes X-Y: ... sperm cell containing an X chromosome fertilizes an egg, the resulting zygote will be XX or female.
Five Facts about XX or XY | Gender Selection Authority 2 Jan 2014 ... Females have two of the same kind of sex chromosome (XX), and are called the homogametic sex.
If men have XY and women have XX what would happen if scientists ... 29 Jan 2014 ... XXXY: Normally not viable, but in extremely rare cases ... The X chromosome is one of the largest chromosomes, containing tons of essential genes that are not related to sex or gender.
Does having a Y chromosome make someone a man? | Intersex ... The equivalent situation - females who have XY instead of XX chromosomes - can occur for a variety of reasons and ...
