ADVANCED PLACEMENT (AP) BIOLOGY: TRANSCRIPTION 32 QUESTIONS CORRECTLY ANSWERED | 100% RATED

Question 1 Which of the following statements about post-transcriptional processing is true? Possible Answers: A methylguanine cap is added to the 3' end of the mature mRNA Exons are spliced out of hnRNA and are not part of the mature mRNA Post-transcriptional hnRNA processing prevents RNA from degrading as it leaves the nucleus A poly-A tail is added to the 5' end of the mature mRNA Correct answer: Post-transcriptional hnRNA processing prevents RNA from degrading as it leaves the nucleus Question 2 Which of the following is not an example of a post-transcriptional modification of mRNA molecules? Possible Answers: EXAM Addition of a 5-methyl guanosine cap Addition of a poly-A tail Splicing of introns Splicing of anticodons Correct answer: Splicing of anticodons Question 3 Which biotechnology method will allow you to distinguish between identical twins? Possible Answers: Restriction fragment length polymorphism (RFLP) Analysis Southern blot DNA fingerprinting Standard fingerprinting Correct answer: Standard fingerprinting Question 4 Which of the following statements is false concerning post-transcriptional modification? Possible Answers: A 5' cap is added in order to provide an attachment site for ribosomes during translation Methylation is not part of post-transcriptional modification A poly A tail is attached to the 3' end of the transcript Spliceosomes remove exons from the transcript and splice together the introns Both the 5' cap and poly A tail protect the transcript from degradation EXAM Correct answer: