Transcription and Translation PRACTICE Exam

Name: ______Hour: ______

Transcription and Translation PRACTICE Exam Biology B/Transcription and Translation

Directions: 1. Put your name on this test packet. 2. Answer all questions directly onto this test packet. 3. Take this test as though it were the real exam: a. Set aside one hour in a quiet place to take the test. b. Attempt to answer all questions WITHOUT using notes or your book. c. After attempting to answer all questions on your own, go back to your notes and book to find answers to the questions you could not answer. Mark which questions these were so that you can return to these as you continue to study. d. You will correct your own test in class, so that you can evaluate how much more you need to study. I will give you a score out of 10 points for my grade book, based on whether or not you completed the test. 4. The questions on this test are NOT identical to the questions on the real test. They cover similar information and are a similar level of difficulty.

Part 1: Multiple Choice (2 points each)

1. Protein Synthesis involves which two processes? a. DNA Replication and Transcription b. DNA Replication and Translation c. Transcription and Mitosis d. Transcription and Translation

2. The “big picture” goal of transcription is to: a. Create mRNA b. Create tRNA c. Create amino acids d. Create a protein

3. The first step in transcription is: a. mRNA exits the nucleus b. DNA is “unzipped” by special enzymes in the nucleus c. DNA re-winds into a double helix d. mRNA is created by complimentary base pairing to a single DNA strand

4. The final step in transcription is: a. mRNA exits the nucleus b. DNA is “unzipped” by special enzymes in the nucleus c. DNA re-winds into a double helix d. mRNA is created by complimentary base pairing to a single DNA strand

5. Transcription occurs in which part of the cell? a. The ribosome b. The nucleus c. The endoplasmic reticulum d. The cell membrane 6. Which strand of DNA is NOT used in the process of transcription? a. The active strand b. The inactive strand c. The leading strand d. The lagging strand

7. Codons consist of how many bases? a. 1 b. 3 c. 5 d. 7

8. Anticodons are found on which type of molecule? a. DNA b. mRNA c. tRNA d. rRNA

9. Which nitrogen base of RNA base pairs to thymine on the DNA? a. Adenine b. Guanine c. Cytosine d. Uracil

10. Which nitrogen base of RNA base pairs to guanine on the DNA? a. Adenine b. Thymine c. Cytosine d. Uracil

For questions 11-17 use the following leading DNA sequence: AACGACTTAGCTTAG

11. What would be the sequence of bases on the complimentary DNA strand? a. AACGACTTAGCTTAG b. AACGACUUAGCUUAG c. UUGCUGAAUCGAAUC d. TTGCTGAATCGAATC

12. What would be the sequence of bases on the complimentary mRNA strand? a. AACGACTTAGCTTAG b. AACGACUUAGCUUAG c. UUGCUGAAUCGAAUC d. TTGCTGAATCGAATC

13. What would be the sequence of bases on the complimentary tRNA anticodons? a. AACGACTTAGCTTAG b. AACGACUUAGCUUAG c. UUGCUGAAUCGAAUC d. TTGCTGAATCGAATC

14. What would be the sequence of amino acids resulting from this original strand of DNA? a. Asparagine, Aspartic Acid b. Asparagine, Aspartic Acid, Leucine, Alanine, Stop c. Leucine, Leucine, Asparagine, Arginine, Isoleucine d. Arginine 15. How many tRNA molecules would be required to complete this amino acid sequence? a. 1 b. 3 c. 4 d. 5

16. Which of the following strands shows a substitution occurring in the original DNA? a. AACGCACTTAGCTTAG b. TTGCTGAATCGAATC c. AACGGCACTTAGCTTAG d. AACGACTTAGCTAG

17. Which of the following strands shows a deletion occurring in the original DNA? a. AACGCACTTAGCTTAG b. TTGCTGAATCGAATC c. AACGGCACTTAGCTTAG d. AACGACTTAGCTAG

18. Which type of mutation generally disrupts the final protein product the most? a. Substitution b. Deletion c. Frameshift d. Point

19. What is the codon that signals for the tRNA to start translation? a. UUA b. AAU c. GAG d. AUG

Part 2: Short Answer

Question 1. Name the three types of RNA and explain the job of each. (6 points) Question 2: Label the picture below with the following terms: mRNA, tRNA, codon, anticodon, ribosome, peptide chain