NEETZoologyMolecular Basis of Inheritance
DNA chemically is less reactive and structurally more stable when compared to RNA stability as a genetic material?
Options
- ADNA has a reactive 2'-OH group at every nucleotide
- BDNA is a better catalytic material than RNA
- CThe two strands of DNA are complementary
- DDNA is less reactive and structurally more stable than RNA
Correct answer
D. DNA is less reactive and structurally more stable than RNA
Step-by-step solution
Stability as one of the properties of genetic material was very evident in Griffith’s ‘transforming principle’ itself that heat, which killed the bacteria, at least did not destroy some of the properties of genetic material. This now can easily be explained in light of the DNA that the two strands being complementary if separated by heating come together, when appropriate conditions are provided. Further, the 2'-OH group present at every nucleotide in RNA is a reactive group and makes RNA labile and easily degradab