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| | Cloning |
 | | Philadelphia: W.B. Saunders Co., 1998, p.2 [NOTE: This is the human embryology textbook used at the University of Nebraska Medical Center] |
 | | "The development of a human being begins with fertilization, a process by which two highly specialized cells, the spermatozoon from the male and the oocyte from the female, unite to give rise to a new organism, the zygote." --Langman, Jan. Medical Embryology. |
 | | "The development of a human begins with fertilization, a process by which the spermatozoon from the male and the oocyte from the female unite to give rise to a new organism, the zygote." --Sadler, T.W. Langman's Medical Embryology. |
| www.nebcathcon.org /cloning.htm (6963 words) |
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