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Two strands of double helical model of D...

Two strands of double helical model of DNA are held together by H- bonds between `:`

A

nitrogen bases

B

phosphoric acid

C

sugar and phosphate

D

nitrogen and sugar

Text Solution

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The correct Answer is:
A
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Double helix model of DNA ia given by

Double helix model of DNA is given by

Knowledge Check

  • The two strands of DNA are held together by :

    A
    peptide bonds
    B
    S-S
    C
    BONDS
    D
    Hydrogen bonds

  • Two strand of DNA held together by

    A
    Nitrogen bond
    B
    Hydrogen bond
    C
    Carbon bond
    D
    Oxygen bond

  • The pairs of bases in DNA are held together by

    A
    hydrogen bonds
    B
    ionic bonds
    C
    phosphate groups
    D
    deoxyribose groups.

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    The double helix model of DNA was proposed by

    Double helical model of DNA molecule was proposed by :

    Assertion : The nitrogen bases of the two chains of DNA are held together by hydrogen bonds. Reason : Both chains of DNA are anitparallel.

    Read the following statements and find out the incorrect statements. a. The length of DNA is usually defined as number of nucleotides or base pairs present in it. b. In DNA, every nucleotide residue has an additional -OH group present at 2' -position in the deoxyribose. c. Nuclein was discovered and named by Friedrich Meisher in 1969. d. Adenine pair with Thymine and Guanine with Cytosine through H-bonds. This makes one strand complementary to the other. e. the proposition of double helical model of DNA was also based on the observation of Erwin Chargaff.

    The double helical structure of DNA was proposed by

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