Multiple choice

The double helix model of DNA was given by

  1. Linus Pauling

  2. Rosalind Franklin

  3. D. Watson and Francis Crick

  4. Gregor Mendel

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The double helix in DNA consists of two right-handed polynucleotide chains that are coiled about the same axis. The heterocyclic amine bases project inward toward the center so that the base of one strand interacts or pairs with a base of the other strand. It was given by D. Watson and Francis Crick .