The two strands of a double helix model of $DNA$ are held together by hydrogen bonds between

The number of $H$-bonds between Guanine and Cytosine is .....

Which of the following statements is false?

The similarity between $DNA$ and $RNA$ is that both are

When did Watson and Crick propose the $DNA$ double helix model?

$S$ Statement: $DNA$ is inherited by organisms produced by parents.
$R$ Reason: $DNA$ acts as a gene.
$(a)$ Both $S$ and $R$ are true,and $R$ is the correct explanation of $S$.
$(b)$ Both $S$ and $R$ are true,but $R$ is not the correct explanation of $S$.
$(c)$ $S$ is true and $R$ is false.
$(d)$ $S$ is false and $R$ is true.
$(e)$ Both $S$ and $R$ are false.