If a length of $DNA$ has $45,000$ base pairs, how many complete turns will the $DNA$ molecule take?
$4,500$
$45,000$
$45$
$450$
The element absent in $RNA$ is
Nucleosomes are bounded by
Explain the role of scientist :
$1.$ Watson and Crick $(1953)$
$2.$ Erwin chargaff
The given figure shows the structure of nucleosome with their parts labelled as $A,\, B$ and $C$. Identify $A,\,B$ and $C$
Which one of the following is not applicableto $RNA$ ?