Nucleic Acids Test 2 Practice Exams
BCHS 4306 Exam #2 October 22, 2013
This exam consists of 33 questions worth a total of 100 points and 2 bonus questions (34 and 35). All questions are multiple-choice. Each question has only ONE answer so choose the best answer. There are a total of 11 pages in this exam. The Genetic Code Table is on page 11. Make sure you bubble in your PEOPLESOFT ID number AND name on your scantron. Your exam score will be linked to the last 4-digits of the number you bubble in. Good luck! Name_________________________ Peoplesoft ID#_____________________
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1. Which of the following is a function of tRNAs? a. Replication b. Transcription c. Translation d. Splicing e. Ribozyme activity Answer: c 2. Which of the following are NOT directly required for translation? a. DNA template b. RNA template c. tRNA d. tRNA synthetases e. Ribosomes Answer: a 3. Which of the following is NOT needed to ensure that the correct amino acid is placed during the translation of a codon of the mRNA? a. Small subunit of the ribosome b. Large subunit of the ribosome c. tRNA d. tRNA synthetase e. Amino acyl site Answer: b 4. Which of the following is NOT an example of RNA editing? a. A-to-I (Adenine to Inosine) – Adenosine deaminases (ADAR) b. C-to-T (Cytidine to Thymine) – Cytidine deaminases c. C-to-U (deamination of Cytidine to Uridine) – APOBEC enzymes d. U-insertion/deletion – Terminal Uridyl Transferase (TUTase) e. None of the above Answer: b 5. What is the DIFFERENCE between a point mutation and RNA editing (if the modification happened in the first nucleotide of a codon)? a. Changes the DNA sequence b. Changes the RNA sequence c. Changes the protein sequence d. b and c e. All of the above Answer: a 6. What is the N-value paradox? a. The number of chromosomes does not reflect genome complexity b. Genome complexity is not reflected by the size of the genome c. Genome complexity is not reflected by the number of genes d. Genome complexity is reflected by the number of repeats e. None of the
This exam consists of 33 questions worth a total of 100 points and 2 bonus questions (34 and 35). All questions are multiple-choice. Each question has only ONE answer so choose the best answer. There are a total of 11 pages in this exam. The Genetic Code Table is on page 11. Make sure you bubble in your PEOPLESOFT ID number AND name on your scantron. Your exam score will be linked to the last 4-digits of the number you bubble in. Good luck! Name_________________________ Peoplesoft ID#_____________________
1
1. Which of the following is a function of tRNAs? a. Replication b. Transcription c. Translation d. Splicing e. Ribozyme activity Answer: c 2. Which of the following are NOT directly required for translation? a. DNA template b. RNA template c. tRNA d. tRNA synthetases e. Ribosomes Answer: a 3. Which of the following is NOT needed to ensure that the correct amino acid is placed during the translation of a codon of the mRNA? a. Small subunit of the ribosome b. Large subunit of the ribosome c. tRNA d. tRNA synthetase e. Amino acyl site Answer: b 4. Which of the following is NOT an example of RNA editing? a. A-to-I (Adenine to Inosine) – Adenosine deaminases (ADAR) b. C-to-T (Cytidine to Thymine) – Cytidine deaminases c. C-to-U (deamination of Cytidine to Uridine) – APOBEC enzymes d. U-insertion/deletion – Terminal Uridyl Transferase (TUTase) e. None of the above Answer: b 5. What is the DIFFERENCE between a point mutation and RNA editing (if the modification happened in the first nucleotide of a codon)? a. Changes the DNA sequence b. Changes the RNA sequence c. Changes the protein sequence d. b and c e. All of the above Answer: a 6. What is the N-value paradox? a. The number of chromosomes does not reflect genome complexity b. Genome complexity is not reflected by the size of the genome c. Genome complexity is not reflected by the number of genes d. Genome complexity is reflected by the number of repeats e. None of the