NEET Botany Molecular Basis of Inheritance Questions Solved

Which of the following is not a feature of the double helix model of DNA ?

(1) The two chains have anti-parallel polarity

(2) A purine always comes opposite to a pyrimidine

(3) The pitch of the DNA is 3.4 nm

(4) The two chains are coiled in a left handed fashion

(4) The two chains are coiled in a right handed fashion

Difficulty Level:

  • 4%
  • 6%
  • 11%
  • 81%