Genetic mutations contribute to variation from "summary" of The Origin of Species (Deluxe Library Binding) (Annotated) by Charles Darwin
It is well known that all organisms tend to vary in some degree, and that variations are passed down from one generation to the next. This variation is not limited to superficial traits like color or size, but can also extend to more fundamental aspects such as the structure and function of an organism's body. The underlying cause of this variation lies in the occurrence of genetic mutations, which are essentially changes in the DNA sequence of an organism. Genetic mutations can arise spontaneously or as a result of external factors such as radiation or chemicals. When t...
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