Cruise ship tour: Last look at the original 'Love Boat'. One of the most famous cruise ships of the modern era, the former Pacific Princess, is being dismantled at a scrapyard in Turkey.
The male parent does. Sex is determined by two chromosomes, X and Y. A female is XX, a male is XY. Since women completely lack the Y choromosome, they always contribute an X chromosome to the baby.The sex is determined by whether the sperm that fertilizes the egg is carrying another X or a Y.es | No Thank you! The male parent does. Sex is determined by two chromosomes, X and Y. A female is XX, a male is XY. Since women completely lack the Y choromosome, they always contribute an X chromosome to the baby. The sex is determined by whether the sperm that fertilizes the egg is carrying another X or a Y.
Men on the other hand have an X and a Y. So, each of their sperm carries one of the 2 sex chromosomes, which sex chromosome is in the sperm that fertilizes the egg dictates the baby's sex.This means that dad, although he can't control wether an X or a Y gets to the egg first, chooses you baby's sex.Many parents begin to wonder about the sex of their baby as soon as they discover they're having a baby. The biological process occurring before you can say it's a girl or it's a boy is a complicated one. So, here's a primer on sex determination. Humans have 1 pair of sex chromosomes.