BusinessDictionary.com. Person or firm that endorses a three party agreement to guarantee that promises made by the first party (the principal) to the second party (client or lender) will be fulfilled, and assumes liability if the principal fails to fulfill them (defaults).
One in 2,000 babies are born with ambiguous genitalia and no one knows for sure if they are boys or girls.
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. Humans have roughly 25,000 genes, yet only 1 gene located on the Y chromosome, the SRY gene is required for male development. How does a single gene out of so many hold the key to whether your baby will be a boy a plain an simple explanation is that this gene activates other boy genes. Without it, girl genes are activated. The internal and external sexual organs of boys and girls developed from the same basic body plan, but you know, at birth, you can clearly distinguish the 2 sexes just by looking.