There is no doubt, scientifically, that a "fertilized human egg" is, in reality, a human zygote or one-cell human person. The human zygote soon divides into two cells and is then called a human embryo. To use the term "fertilized human egg" is an attempt to depersonalize and marginalize the human individual person at his or her earliest stage of development.
— George Delgado, M.D., F.A.A.F.P., Culture of Life Family Health Care; Voluntary Associate Clinical Professor, Department of Family and Preventive Medicine, School of Medicine, University of California, San Diego