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.
A baby's sex is determined at fertilisation. A chromosome from the father's sperm determines whether the child is male or female. If an X chromosome is present the baby is a girl; if a Y chromosome is carried by the sperm instead, the baby is a boy.