But to live inside each cell`s microscopic nucleus, each long strand of DNA gets wrapped like a noodle into 46 chromosomes. You got those chromosomes
from your parents, 23 from dad, 23 from mom. There is one from dad that is special, it determines if you`re a girl or a buy.
Our DNA is only about 1 percent different from a chimpanzee. But that tiny change has made all we know and accomplish possible.