neodarwinism

Science Dictionary
Neo-Darwinism   (nē'ō-där'wə-nĭz'əm)  Pronunciation Key 
Darwinism as modified by the findings of modern genetics, stating that mutations due to random copying errors in DNA cause variation within a population of individual organisms and that natural selection acts upon these variations.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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