MHT CET · Chemistry · Biomolecules
Which from following is NOT a salient feature of Watson and Crick model for DNA?
- A Polynucleotide strands wind in to a right handed double helix.
- B Sugar-phosphate back bone lies at in side and bases lie out side of helix.
- C Double helix is stabilized by hydrogen bonding formed in two strands.
- D \(\mathrm{A}=\mathrm{T}\) and \(\mathrm{G}=\mathrm{C}\) are complementary base pairs.
Answer & Solution
Correct Answer
(B) Sugar-phosphate back bone lies at in side and bases lie out side of helix.
Step-by-step Solution
Detailed explanation
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.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Which from following catalysts is used in the Haber's process for manufacture of ammonia?MHT CET 2024 Easy
- Which from following statements is TRUE about \(\mathrm{CH}_3 \mathrm{CH}\left(\mathrm{NH}_2\right) \mathrm{CH}_2 \mathrm{COOH}\) molecule?MHT CET 2023 Medium
- Calculate the edge length of unit cell if a metal with atomic radius 128 pm forming fcc unit cell structure.MHT CET 2025 Easy
- Calculate the rate constant of the first order reaction if \(20 \%\) of the reactant decomposes in 15 minutes.MHT CET 2023 Medium
- Which among the following elements of group-2 exhibits anomalous properties?MHT CET 2018 Easy
- What is the resistance of \(0.01 \mathrm{M} \mathrm{KCl}\) solution if its conductivity is \(200 \mathrm{ohm}^{-1} \mathrm{~cm}^{-1}\) and cell constant is \(1 \mathrm{~cm}^{-1}\) ?MHT CET 2021 Medium
More PYQs from MHT CET
- Which among the following elements in their respective oxidation states develops lowest spin only magnetic moment? (Atomic number \(\mathrm{Cu}=29, \mathrm{Fe}=26, \mathrm{Ni}=28, \mathrm{Co}=27\) )MHT CET 2022 Easy
- A simple pendulum has a time period ' \(\mathrm{T}\) ' \(\mathrm{in}\) air. Its time period when it is completely immersed in a liquid of density one eighth the density of - the material of bob isMHT CET 2023 Hard
- The rate constant for a first order reaction is \(0.58 \mathrm{~s}^{-1}\) at 300 K and \(0.026 \mathrm{~s}^{-1}\) at 290 K. What is the energy of activation? \(\left(\mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right)\)MHT CET 2025 Medium
- Find \(\left[\mathrm{OH}^{-}\right]\)if a monoacidic base is \(3 \%\) ionised in its \(0.04 \mathrm{M}\) solution.MHT CET 2023 Medium
- Which element from following has largest ionic size in +3 state ?MHT CET 2025 Medium
- 1 C electricity depositsMHT CET 2010 Medium