The length of a helix of $DNA$ is
$10\mathring A$
$20\mathring A$
$30\mathring A$
$34\mathring A$
The term 'Nuclein' for the genetic material was used by
Which of the following statements is correct$?$
Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it ?
The figure gives an important concept in the genetic implication of $DNA$. Fill the blanks $A, B$ and $C$.
Choose incorrect sentence.