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July 22, 1916


JAMA. 1916;LXVII(4):287-288. doi:10.1001/jama.1916.02590040041012

From some points of view an individual may be regarded as representing a sort of arithmetical mean of both of his parents. There may be a blending of characteristics so that some features of each parent may be found in the offspring considered as a unit organism. In certain respects, however, definite qualities appear to be transmitted from parent to offspring either completely or not at all. Through Mendel's classic experiments and the subsequent enormous development of the study of heredity, it has become possible to formulate the plan in accord with which characteristics are transmitted so that they may appear as dominant in type and frequently manifest themselves, or may continue to be handed down in latent or recessive form until combinations of circumstances now definitely formulated lead to their cropping out. Genetics has become a more representative science than the study of breeding was a generation ago. In

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