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DNA has equal number of adenine and thym...

DNA has equal number of adenine and thymine residuces (A=T) and equal number of guanine and cytosine (G=C). These relationships are known as

A

Chargaff's rule

B

Coulomb's law

C

Le Chatelier's priciple

D

Van't Hoff plot

Text Solution

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The correct Answer is:
A
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A=T and G=C . The relationship of DNA is

The Chargoff's rule says that DNA contains equal amounts of guanine and cytosine and also equimolar amounts of adenine and thymine as : G=C and A =T (a) Does Chargoff's rule imply that equal amounts of guanine and adenine are present in DNA ? (b) Does Chargoff's rule imply that the sum of purine residues equals the sum of pyrimidine residues i.e. does A +G= C+ T ? (c) Does Chargoff's rule apply only to double stranded DNA or would it apply to each individual strand if the double helical strand were separated into two complementary strands ?

Knowledge Check

  • DNA has equal number of adenine and thymine residues (A=T) and equal number of guanine and cytosine (G=C). These relationships are known as :

    A
    Van't Hoff plot
    B
    Le Chatelier's principle
    C
    Coulomb's law
    D
    Chargaff's rule

  • number of H-bonds between guanine and cytosine are-

    A
    one
    B
    two
    C
    three
    D
    Four

  • If the total amount of adenine and thymine in a ds DNA is 55%, the amount of guanine in this DNA will be

    A
    `45%`
    B
    `27.5%`
    C
    `25%`
    D
    `22.5%`

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    Which of the following has an equal number of neutrons and protons?

    Which of the following has an equal number of neutrons and protons?

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