Which is a correct statement about mutations?
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a. mutations ensure alleles never change.
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b. mutations decrease variety in the population.
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c. mutations are always bad.
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d. mutations increase variety in a population.

Which of the following statements regarding anfinsen's denaturing experiments with ribonuclease a (rnase a) are valid? exposing the denatured protein to air oxidation and then dialysis to remove urea restored the protein to its original functionality. removing urea by dialysis and then allowing air oxidation of the denatured protein restored the protein to its original functionality. denaturing the protein with both urea and β-mercaptoethanol yielded an inactive protein. anfinsen concluded that protein folding is determined by its primary sequence.

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

What is gene expression control that occurs after the generation of rna