1.

Two samples of DNA, A and B have melting points 340 K and 350 K respectively. This is because

Answer»

B has more GC content than A
A has more GC content than B
B has more AT content than B
both have same AT content.

Solution :Since GC base pair havingthreebH - BONDS so it ismore stablethan ATbase pairhavingtwo H - bondstherefore DNA , B has highermeltingpoint than DNA,A.


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