Scientific Source #73 – Testimony
“So, therefore, it is scientifically correct to say that an individual human life begins at conception, when egg and sperm join to form the zygote, and that this developing human always is a member of our species in all stages of its life.”73
73Testimony of Dr. Micheline Mathews-Roth, M.D., The Human Life Bill: Hearings on S. 158 Before the Subcommittee on Separation of Powers of the Senate Committee on the Judiciary, 97th Cong., 1st Sess. (1981), p. 17.