Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Abhijeet Gaurav
Answer is A & D. only one strand needs to be cut. As it will bring DNA from Positively supercoiled to negative supercoiled. ATP is required for inter-conversion. For Positive to negative supercoiled condition.
Sir what book would you suggest to study for clearing the concepts of this type of questions ?
Keep your source limited & have trust on them. Life Sciences Pathfinder would be best for it. For practising questions MCQs for Life Sciences Pathfinder would be great. You can consult few YouTube channels even like Arpan Parichha but don't deviate much.