Male Or Female? Once Upon A Time, It Was Less Clear
Wednesday, April 23, 2014 - 21:00
in Biology & Nature
Man or woman? Male or female? Modern sociological woo about gender aside, in humans and other mammals, the difference between the sexes depends on one single element of the genome: the Y chromosome. It is present only in males, where the two sexual chromosomes are X and Y, whereas women have two X chromosomes. Thus, the Y is ultimately responsible for all the morphological and physiological differences between males and females. read more