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Were You a Zygote?

Published online by Cambridge University Press:  08 January 2010


The usual way for new cells to come into being is by division of old cells. So the zygote, which is a—new—single cell formed from two, the sperm and ovum, is an exception. Textbooks of human genetics usually say that this new cell is beginning of a new human individual. What this indicates is that they suddenly forget about identical twins.

Copyright © The Royal Institute of Philosophy and the contributors 1984

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1 Levitan, and Montague, , Textbook of Human Genetics (Oxford University Press, 1971).Google Scholar