Adenine, thymine, guanine, and cytosine
Charles Darwin noticed that among the same species there were variations in traits based upon geographical location. These changes may have evolved from climate differences, predator/prey relationships and food sources. This particular experiment was intended to duplicate natural selection by demonstrating the concepts with artificial selection. The result was that over time, new traits could be bred for. Although there may be more than one correct answer here, the best answer is the first; desirable traits can be selected and bred in offspring.
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Answer:
Amino acid substitutions at the interaction interface may result in binding affinity changes, and thus affect the structure of the protein complex. ... This structural change may significantly affect the binding energy, and make the protein complex unstable
Explanation:
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