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choose the correct answer use the following eukaryotic mRNA and the genetic code

ID: 266446 • Letter: C

Question

choose the correct answer

use the following eukaryotic mRNA and the genetic code to answer questions 13-15 s-AACGCA UAACUGGAAAAAAA3 13. When translation initiation occurs correctly, the amino acid sequence of the polypeptide encoded by this mRNA is? a. Met-asn-glu-gin b. Met-lys-glu-gin C. Met-arg-his-glu d. Met-ser-his-glu 14. If cytosine, nucleotide #11 from 5. end (in bold), is changed to adenine, what kind of mutation occurs? a. Missense b. Nonsense c. Silent d. Frameshift e. Antisense 15. If uracil nucleotide #14 from 5' end (underlined) is changed to adenine, what kind of mutation occurs? a. Missense b. Nonsense c. Silent d. Frameshift e. Antisense 16. A ribozyme is a. An enzyme that translates mRNA into protein b. An enzyme made of RNA c. An enzyme that degrades RNA d. An enzyme composed of both RNA and protein e. An enzyme that synthesizes RNA geneB DNA gene A 17. Two genes next to each other on a chromosome are arranged as in the figure above. a. The two genes must be transcribed into RNA using the same strand of DNA b. If gene A is transcribed in a cell, gene B cannot be transcribed c. Gene A and gene B can be transcribed at different rates, producing different Which of the following statements is TRUE? amounts of RNA within the same cell d. If gene A is transcribed in a cell, gene B must be transcribed

Explanation / Answer

13) The polypeptide encoded by this mRNA is:

C) Met-arg-his-glu

14) What kind of mutation occurs in this case?

C) Silent

15) What kind of mutation occurs in this case?

A) Missence

16) A ribozyme is:

B) An enzyme made of RNA

17) Which of the following statements is true?

C) Gene A and gene B can be transcribed at different rates, producing different amounts of RNA within the same cell.