TLS Online TPP Program

#Question id: 2853


Not all bacteria need to maintain their DNA in a negatively supercoiled state. Bacteria that prefer to grow at very high temperatures must expend energy. Which of the following observation found to be true?

A. Bacteria don’t need to expend energy to prevent their DNA from unwinding due to thermal denaturation

B. These bacterial organisms have a different topoisomerase called reverse gyrase

C. Reverse gyrase decrease the linking number of relaxed DNA in the presence of ATP

#Unit 2. Cellular Organization
  1. A, B & C     

  2. B&C         

  3. B only   

  4. C only