Q. Double helical model of DNA was given by

81 148 NTA AbhyasNTA Abhyas 2020 Report Error

A

Wilkins

B

Franklin

C

Watson and Crick

D

None of these

Solution:

Double helical model of DNA was given by Watson and Crick in the year $1953.$ Watson and Crick model of the double helix is a right-handed coiled DNA. The two strands are antiparallel and complementary to each other. Both strands of the DNA helix are joined by hydrogen bonds. The coiling of two strands creates major and minor grooves.