Life is precious but it never begins

When does a human become human? Is it at the moment of conception when a sperm cell fuses with an egg? As a researcher in developmental genetics (the study of how genes control embryo development) I would like to put in my two cents worth to remind the faithful and even some scientific colleagues of one basic fact. Human life never begins! Human life never begins because sperm cells and egg cells are not dead - Michael Lardelli