Griffith conducted his experiments with pneumonia-causing bacteria and mice. He found that_ O Bacteriophages injected DNA from smooth cells into rough cells O None of the above Some heat-stable chemical from smooth cells was transferred to rough cells to transform them into smooth cells O The polysaccharide coat of rough cells caused pneumonia The protein coat from smooth cells was able to transform rough cells

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A:

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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.