In the late 1800s, the saltation hypothesis (hopeful monster hypothesis) was proposed as a way to explain how speciation happens. Why was this hypothesis ultimately rejected by "the new synthesis"? 1.Because it required individuals to evolve rather than populations 2 Could not explain where mutations came from 3 we discovered the DNA nature of genes

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Q: DNA-based

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A:

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A:

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A: Species is defined as the group of individuals that can mate together.

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Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.