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NEST2023BiologyMolecular Basis of Inheritance

A 1000 base pair double-stranded DNA (B form) has a melting temperature (T_m ) of 58^ C . If a duplex RNA (A form) of the same length and sequence is constructed, then the T_m of this new RNA duplex with respect to the DNA (B form) would be

Options

  1. Ahigher due to greater stability of A form of RNA duplex.
  2. Blower due to lower stability of A form of RNA duplex.
  3. Clower because of unfavourable enthalpy of formation of RNA duplex.
  4. Didentical, as the number of hydrogen bonds remain the same.

Correct answer

A. higher due to greater stability of A form of RNA duplex.

Step-by-step solution

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