Medicine | Gene editing could alter human embryos for life
by Charles Horton, M.D.
Posted 3/01/17, 11:36 am
Do genes equal destiny? Anatomically speaking, yes: A child with two X chromosomes will be a girl, and a child with one X and one Y will be a boy. Genes help determine everything from height and hair color to whether a person will enjoy certain flavors. They can also act like mosquitoes and ticks, transmitting disease.