I. Basic Information

A. Your name 

A. The authors ofthe articles claim that E. coli might have gained foreign DNA byviral infection. Do you understand how this might occur without killingthe E. coli? Select Yes No 

B. Do you understandthe principle behind a method that might distinguish DNA that E. colirecently acquired from DNA it shares with millions-of-years-worth ofancestors? Select Yes No 

C. Do you feel comfortableinterpreting Tables 1 and 2? Select Yes No 

D. Which of the two mutationsin codons below would result in a change in the amino acid sequence ofthe encoded protein?Select AACto AAG CGG to AGG

E. Two distantly relatedbacteria both have genes that encode the protein cytochrome c. The proteinshare considerable sequence similarity and probably shared a common ancestorperhaps a billion years ago. One of the bacteria also has two copies ofthe protein glutamine synthetase, each with slightly different functionalproperties than the other.

E.1. Which proteinsare likely to be orthologs? Select Thecytochrome c's The glutaminesynthetases 
E.2. Which proteins arelikely to be paralogs? Select Thecytochrome c's The glutaminesynthetases 

Comments for questions II.Athrough II.F: