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iGenetics 3rd Edition by Peter Russell
Edition 3ISBN: 978-0321569769iGenetics 3rd Edition by Peter Russell
Edition 3ISBN: 978-0321569769 Exercise 6
In mutant strain X of E. coli, a leucine tRNA that recognizes the codon 5 ' -CUG-3 ' in normal cells has been altered so that it now recognizes the codon 5 ' -GUG-3 '. A missense mutation that affects amino acid 10 of a particular protein is suppressed in mutant X cells.
a. What are the anticodons of the two Leu tRNAs, and what mutational event has occurred in mutant X cells?
b. What amino acid would normally be present at position 10 of the protein (without the missense mutation)?
c. What amino acid is put in at position 10 if the missense mutation is not suppressed (i.e., in normal cells)?
d. What amino acid is inserted at position 10 if the missense mutation is suppressed (i.e., in mutant X cells)?
a. What are the anticodons of the two Leu tRNAs, and what mutational event has occurred in mutant X cells?
b. What amino acid would normally be present at position 10 of the protein (without the missense mutation)?
c. What amino acid is put in at position 10 if the missense mutation is not suppressed (i.e., in normal cells)?
d. What amino acid is inserted at position 10 if the missense mutation is suppressed (i.e., in mutant X cells)?
Explanation
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Verified
Ribonucleic acid (RNA) is a form of gene...
iGenetics 3rd Edition by Peter Russell
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