MHT CET202410 May 2024Morning ShiftChemistryBiomoleculesActual
Which from following is NOT a salient feature of Watson and Crick model for DNA?
Options
- APolynucleotide strands wind in to a right handed double helix.
- BSugar-phosphate back bone lies at in side and bases lie out side of helix.
- CDouble helix is stabilized by hydrogen bonding formed in two strands.
- DA = T and G = C are complementary base pairs.
Correct answer
B. Sugar-phosphate back bone lies at in side and bases lie out side of helix.
Step-by-step solution
In the Watson and Crick model of DNA, the sugar-phosphate backbone lies on the outside of the double helix, and the nitrogenous bases ( A, T, G, C ) are located on the inside of the helix, where they form base pairs. So, option (2) is incorrect.