Quiz 3.docx - Question 1 1 out of 1 points Structures located at the ends of eukaryotic chromosomes are called Answer Selected Answer telomeres Question

Quiz 3.docx - Question 1 1 out of 1 points Structures...

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Question 1 1 out of 1 points Structures located at the ends of eukaryotic chromosomes are called Answer Selected Answer: telomeres. Question 2 0 out of 1 points DNA polymerase III adds nucleotides Answer Selected Answer: to the 5' end of the RNA primer. Question 3 1 out of 1 points One form of post-translational modification of a protein includes Answer Selected Answer: removal or modification of terminal amino acids. Question 4 1 out of 1 points The β chain of adult hemoglobin is composed of 146 amino acids of a known sequence. In comparing the normal β chain with the β chain in sickle cell hemoglobin, what alteration is one likely to find? Answer Selected Answer: valine instead of glutamic acid in the sixth position Question 5 1 out of 1 points
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A short segment of an mRNA molecule is shown below. The polypeptide it codes for is also shown: 5'-AUGGUGCUGAAG : methionine-valine-leucine-lysine Assume that a mutation in the DNA occurs so that the fourth base (counting from the 5' end) of the messenger RNA now reads A rather than G. What sequence of amino acids will the mRNA now code for?
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  • Spring '17
  • Yunxuan Yang

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