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  1. AP Biology
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Gene Expression and Regulation

Question 1
college-boardBiologyAPExam Style
1 mark

Post-transcriptional modifications in eukaryotes include splicing out introns; what is crucial for recognizing intron-exon boundaries accurately?

Question 2
college-boardBiologyAPExam Style
1 mark

What could be a potential consequence if a point mutation resulted in a faulty spliceosome that is unable to recognize splice sites correctly?

Question 3
college-boardBiologyAPExam Style
1 mark

The sequence of nucleotides on mRNA is read in triplets called __.

Question 4
college-boardBiologyAPExam Style
1 mark

What is responsible for recognizing and binding to promoter regions of DNA thus initiating transcription?

Question 5
college-boardBiologyAPExam Style
1 mark

Which component is not directly involved in transcription initiation complex formation?

Question 6
college-boardBiologyAPExam Style
1 mark

Transcribe the following sequence. G T A G T C

Question 7
college-boardBiologyAPExam Style
1 mark

During eukaryotic pre-mRNA processing, what is added to the 5' end of an mRNA molecule?

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Question 8
college-boardBiologyAPExam Style
1 mark

An mRNA transcript must be modified in order to survive outside of the nucleus. In addition to a GTP cap, a transcript receives a(n) _____.

Question 9
college-boardBiologyAPExam Style
1 mark

Which of these processes occurs directly after pre-mRNA has been transcribed from DNA in eukaryotic cells?

Question 10
college-boardBiologyAPExam Style
1 mark

During phase elongation in prokaryotic organisms, what key factor ensures the sequential order of nucleotides being synthesized along the template strand?