The double-helical structure of $DNA$ discovered by Watson and Crick is known as .....

What is the length of haploid human $DNA$ in meters?

Wilkins' $X$-ray diffraction data of $DNA$ shows the diameter of the $DNA$ helix to be:

What does $P$ represent in the given figure?

$A$ $DNA$ fragment contains $12$ nucleotides. What is the ratio of purine and pyrimidine nitrogenous bases in it?

In an experiment,$DNA$ is treated with a compound that intercalates between the stacks of nitrogenous base pairs. As a result,the distance between two consecutive base pairs increases from $0.34 \, nm$ to $0.44 \, nm$. Calculate the length of the $DNA$ double helix (which has $2 \times 10^9 \, bp$) in the presence of a saturating amount of this compound. (in $m$)