The Feulgen reaction is specific for:

$S$ 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.

The heterochromatin part of chromosome is . . . . . . times more rich in $DNA$ than euchromatin.

In $DNA$,when the sequence is $AGCT$,what is the corresponding complementary strand sequence?

Watson and Crick are known for their discovery that $DNA$

What is the similarity between $DNA$ and $RNA$?