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When RNA is hydrolysed, there is no rela...

When RNA is hydrolysed, there is no relationship among the quantities of different bases obtained. What does this fact suggest about the structure of RNA?

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A DNA molecule has two strands in which the four complementary bases pair each other, i.e., cytosine (C) always pair with guanine (G) while thymine (T) always pairs with adenine (A). Thus, when a DNA molecule is hydrolysed, the molar amounts of cytosine is always equal to that of guanine and that of adenine is always equal to that of guanine and that of adenine is always equal to thymine. In RNA, there is no relationship between the quantities of four bases (C, G, A and U) obtained, therefore, the base pairing principle, i.e., A paris with U and C pairs with G is not followed. Therefore, unlike DNA, RNA has a single strand.
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Knowledge Check

  • What is fals about t RNA

    A
    It binds with an amino acid at it 5' end
    B
    It has five double stranded regions
    C
    It has a codon at one end which recognizes the anticodon on messenger RNA
    D
    It looks like clover leaf in the three dimensional structure

  • What is true about t-RNA ?

    A
    It has five double stranded regions
    B
    It binds with an amino acid at it 3' end
    C
    It looks like clover leaf in the three dimensional structure
    D
    It has a codon at one end which recognises the anticodon on messenger RNA

  • When ATP molecules is hydrolysed in AdP, then the quantity of energy released is about

    A
    120 cal
    B
    1,200 cal
    C
    12,000 cal
    D
    1,20,000 cal

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