When the sperm and egg nuclei unite, all the characteristics, such as colour of eyes, hair, skin, that make a unique personality are laid down determinatively. Dr. H. Ratner , Report April 1966 . From the moment a baby is conceived, it bears the indelible stamp of a separate distinct personality, an individual different from all other individuals. Ultrasound pioneer, Sir William Liley, M.D. 1967 . The birth of a human life really occurs at the moment the mother's cell is fertilized by one of the father's sperm cells.
Human life begins when the sperm of the father enters the ovum or egg of the mother.
The Life Cycle Library for Young People. When the sperm and egg fuse, the newly-formed cell has conferred upon it the degree of Homo Sapiens, with all the rights and privileges pertaining. Peter Amenta, Ph.D. Professor of Embryology, Hahnemann Medical School . I have learned from my earliest medical education that human life begins at conception. I submit that human life is present throughout this entire sequence, from conception to adulthood, and any interruption at any point throughout this time constitutes the termination of a human life.