One turn of the helix in a B­form $DNA$ is approximately 

  • [AIPMT 2006]
  • A
    $2\ nm$
  • B
    $20\ nm$
  • C
    $0.34\ nm$
  • D
    $3.4\ nm.$

Similar Questions

Information flow or central dogma of modern biology is

Describe the structure of polynucleotide chain of DNA or RNA ?
 

What background information did Watson and Crick have made available for developing a model of $DNA$ ? What was their contribution ?

Purines found both in $DNA$ and $RNA$ are

 

  • [NEET 2019]

The modern concept of gene is