N M B Biology 211, Winter 2018S Final Exam Name This exam is worth 80 points. Yo
ID: 212342 • Letter: N
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N M B Biology 211, Winter 2018S Final Exam Name This exam is worth 80 points. You will have 1 hour and 50 minutes to complete it. Transcription and translation. (6 points) 1. Given the DNA sequence from the DNA tomplate strand shown below, what are the corresponding complementary mRNA and tRNA sequences? What are the amino acids? Note: the mRNA bases will be complementary to the DNA bases that are shown here. Assume that the tRNA bases will be exactly complementary to the mRNA bases. Use the gonctic code table at the back of the test-and read the directions for using it DN.A semplutic TAC GGA TAT mRNA: RNA Amino acids:_ (1 point) (1 point) (1 point) - 2. In the DNA template, if the 6 base (A) mutates to a C, without any other change to the DNA occurring: a. What is the sequence of the 12 mRNA bases? (1/2 point) mRNA: What is the sequence of the four amino acids (or start or stop signals)? (1 point) Amino acids: b. 3. In the DNA template, if the 5 base (G) mutanes to a C, without any other change to the DNA occurring (the 6 s base remains an "A," and all other buses remain as they are in the DNA template shown) a. What is the sequence of the 12 mRNA bases? (1/2 point) mRNA: b. What is the sequence of the four amino acids (or start or stop signals)? (1 point) Amino acids. Page 5Explanation / Answer
1.
mRNA AUG CCU AUA UGA
tRNA UAC GGA UAU ACU
Aminoacids Met Pro ile stop
2.
(a) mRNA AUG CCG AUA UGA
(b) Aminoacids Met Pro ile stop
3.
(a) mRNA AUG CGU AUA UGA
(b) Aminoacids Met Arg ile stop
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