Answer: Rosalind Franklin discovered the density of DNA and, more importantly, established that the molecule existed in a helical conformation. Her work to make clearer X-ray patterns of DNA molecules laid the foundation for James Watson and Francis Crick's suggestion that DNA is a double-helix polymer in 1953.
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D: All the variables are controlled except one.
Enzymes speed up chemical reactions within the body, including reactions in metabolism
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in the circumstances in which the attempts do not contravene the ethical and judicial laws.
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Got my points deducted by a loser name PoeticAesthetics
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