Until just a few years ago, making a baby boy or a baby girl was pretty much a hit-or-miss affair. Not anymore. Parents who have access to the latest genetic testing techniques can now predetermine their baby's sex with great accuracy.

Before The unit

Well I didn't know much about genetics before this chapter. I knew what dominate and reccesssive was and how they are passed. I knew how to tell what eye color the child would be.