1.

Question : DNA is a polymer of nucleotides which are linked to each other by 3' - 5' phosphodiester bond. To prevent polymerisation of nucle- otides, which of the following modifications would you choose

Answer»

Replace PURINES with pyrimidines
Remove/Replace 3' OH group in deoxyribose
Remove / Replace 2' OH group with some other group in deoxyribose
Both (B) and ©

Answer :b


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