Describe Watson and Crick double helical model of DNA.

Sketch a double helix of DNA.

Give a brief account of Watson and Crick model of DNA.

The reason for double helical structure of DNA is operation of

Name two scientists who proposed double helical structure of DNA.

Fill in the blanks: The double helix model of DNA was proposed by………………….and……….. .

Write " True" or "False" Z-DNA has left handed helical structure as against right handed helical structure of B-DNA

What background information did Watson and Crick had with them for developing a model of DNA? What was their own contribution?