Cow embryos reveal new type of chromosome chimera
Friday, May 27, 2016 - 08:31
in Biology & Nature
I've often wondered what happens between the time an egg is fertilized and the time the ball of cells that it becomes nestles into the uterine lining. It's a period that we know very little about, a black box of developmental biology, because observing or doing anything to even the earliest human embryos is frowned upon.