The gene is the unit of heredity. While this definition may seem to stand on its own and not need further explanation, in fact, it represents a continuing evolution in the way we view the biological process of inheritance. Mendel’s view of the gene (the mechanism of inheritance) was an important conceptual change from the established view in the nineteenth century. Darwin, the establishment figure, promulgated the idea, first voiced by Hippocrates (400 BCE), that inheritance derived from miniature body parts or characters transmitted through copulation. Darwin’s theory of ‘pangenesis’ saw semen as being replenished by ‘gemmules’ derived from all the somatic tissues of the body. Mendel’s explanation instead makes it clear that it is the information about the characters rather than the charac ters themselves that are transmitted.
The gene is the unit of heredity. While this definition may seem to stand on its own and not need further explanation, in fact, it represents a continuing evolution in the way we view the biological process of inheritance. Mendel’s view of the gene (the mechanism of inheritance) was an important conceptual change from the established view in the nineteenth century. Darwin, the establishment figure, promulgated the idea, first voiced by Hippocrates (400 BCE), that inheritance derived from miniature body parts or characters transmitted through copulation. Darwin’s theory of ‘pangenesis’ saw semen as being replenished by ‘gemmules’ derived from all the somatic tissues of the body. Mendel’s explanation instead makes it clear that it is the information about the characters rather than the charac ters themselves that are transmitted.
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