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  1. AP Biology
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Gene Expression and Regulation

Question 1
college-boardBiologyAPExam Style
1 mark

What is termination in the process of translation?

Question 2
college-boardBiologyAPExam Style
1 mark

During elongation in eukaryotic translation, what would be affected if eEF2 were inhibited?

Question 3
college-boardBiologyAPExam Style
1 mark

Given cells expressing mutant eukaryotic release factors incapable of recognizing standard stop codons accurately during termination phase of translation, which cellular adaptation could potentially compensate for this deficiency?

Question 4
college-boardBiologyAPExam Style
1 mark

What molecule does a tRNA carry and add to the growing polypeptide chain during translation?

Question 5
college-boardBiologyAPExam Style
1 mark

Which aspect of the elongation phase would be directly affected by a chemical that inhibits peptidyl transferase activity inside ribosomes?

Question 6
college-boardBiologyAPExam Style
1 mark

Which of the following scenarios would most likely result in a functional protein despite the presence of a nonsense mutation early in the mRNA sequence?

Question 7
college-boardBiologyAPExam Style
1 mark

In organisms where multiple copies of tRNA genes exist for each amino acid, what could be an evolutionary advantage when some but not all copies acquire mutations that prevent function?

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Question 8
college-boardBiologyAPExam Style
1 mark

Which of the following mutations in the coding sequence of a gene is most likely to have no effect on the amino acid sequence of the encoded protein?

Question 9
college-boardBiologyAPExam Style
1 mark

How does a codon relate to an anticodon during translation?

Question 10
college-boardBiologyAPExam Style
1 mark

If a mutation occurs resulting in the insertion of an extra nucleotide pair, causing a frameshift, how will it affect the subsequent amino acid sequence?