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The two samples of DNA, A and B have mel...

The two samples of `DNA,` `A` and `B` have melting tempreatures `(T_(m)) 340` and `350 K`,respectively. Can you draw any conclusion from this data regarding their base content?

Text Solution

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We know that CG base pair has three H-bonds and AT base pair has two H-bonds, therefore, CG base pair is more stable than AT base pair. Since sample B has higher melting temperature than sample A, therefore, sample B has higher CG content as compound to sample A.
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Knowledge Check

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

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

  • Two sample of DNA,A and B have metling points 340 K , and 360 K respectively . This is because .

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

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    `(1)/(2)`
    B
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