Meiosis, the form of cell division unique to egg and sperm production, sets the stage for sex determination by creating sperm that carry either an X or a Y sex chromosome. But what is it about the X or Y that determines sex?
This animation shows how MIX-1 facilitates both chromosome condensation and dosage compensation.
A demonstration by Dr. Barbara Meyer of how a branched genetic pathway can be affected by mutations in different parts of the pathway.
Video microscopy demonstrating how sperm from an infertile male can be injected into a female egg.