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Campbell Biology Chapter 16-17

Question:

Why might a point mutation in DNA make a difference in the level of protein's activity?

A) It might result in a chromosomal translocation.

B) It might exchange one stop codon for another stop codon.

C) It might exchange one serine codon for a different serine codon.

D) It might substitute an amino acid in the active site.

E) It might substitute the N terminus of the polypeptide for the C terminus.

Answer:

D) It might substitute an amino acid in the active site.

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Last update by mayur on 03/27/2014
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Campbell Biology Chapter 16 17
Campbell Biology Chapter 16-17
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Free Flashcard From Campbell Biology Chapter 16-17
Question: Why might a point mutation in DNA make a difference in the level of protein's activity? A) It might result in a chromosomal translocation. B) It might exchange one stop codon for another stop codon. C) It might exchange one serine codon for a different serine codon. D) It might substitute an amino acid in the active site. E) It might substitute the N terminus of the polypeptide for the C terminus.
Answer: D) It might substitute an amino acid in the active site.