Excerpt from Heredity and Eugenics The central problem of evolution is still the nature and causes of variation, while the practical problems of eugenics centre about heredity. Variation in past ages has already endowed the human race with an almost infinite variety of types and characters, many of the latter alternative in their inheritance. We have only to compare those we know best with their relatives and ancestors to realise how minute are the resemblances and differences which may be handed on to descendants and ...
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Excerpt from Heredity and Eugenics The central problem of evolution is still the nature and causes of variation, while the practical problems of eugenics centre about heredity. Variation in past ages has already endowed the human race with an almost infinite variety of types and characters, many of the latter alternative in their inheritance. We have only to compare those we know best with their relatives and ancestors to realise how minute are the resemblances and differences which may be handed on to descendants and collateral lines. These are, no doubt, chiefly a matter of biological inheritance, though similarity of environment may play a' part in certain cases. Probably in no other species of animal or plant does the number of differences between individuals approach the number to be Observed in man. This is to be expected, because of the mental and physical complexity of the human organism; but it does not imply greater intrinsic variability than in other animals or plants. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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