Q1. Find the cube of :
(i) 2a + 3b (iii) 4a – 5b
(ii) 2a +
1
/2a
(iv) 3a -
1
/a
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Answer:
Topoisomerase: A class of enzymes that alter the supercoiling of double-stranded DNA. (In supercoiling the DNA molecule coils up like a telephone cord, which shortens the molecule.) The topoisomerases act by transiently cutting one or both strands of the DNA.
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