Author: Charles W. Socarides
Sexual reproduction was antedated by asexual reproduction or fission, that is, one cell splitting into two identical cells. The word sexual is derived from biology and refers to a form of reproduction occurring between two cells which are different from each other. Their combined nuclear material resulted in a completely new individual cell and this became the basis of all evolutionary development. Sexual development began solely as reproductive activity. It was later enlarged to include sexual pleasure activity with or without reproduction.
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