$A$ genetic mutation that does not result in a phenotypic expression is called a .....

Which of the following figures correctly represents the replication fork formed during $DNA$ replication?

Match the process in Column-$I$ with the enzyme involved in Column-$II$.

Column-$I$	Column-$II$
$(A)$ $DNA$ replication	$(p)$ $RNA$ polymerase
$(B)$ Translation	$(q)$ $DNA$ polymerase
$(C)$ Transcription	$(r)$ Reverse transcriptase
$(D)$ Reverse transcription	$(s)$ Aminoacyl synthetase

Select the code for the correct answer from the options given below.

Match the following columns:

Column-$I$	Column-$II$
$(p)$ $AUG$	$(a)$ Transposons
$(q)$ $UGA$	$(b)$ Jacob and Monod
$(r)$ Jumping genes	$(c)$ Termination codon
$(s)$ Operon model	$(d)$ Methionine

How many of the following statements are correct?
$I - RNA$ is formed from $DNA$ by the process of transcription.
$II - DNA$ is more stable than $RNA$.
$III - RNA$ acts as a catalyst (enzyme) in some biochemical reactions.
$IV - DNA$ is resistant to mutations due to its double-helical structure and the presence of complementary strands that allow for repair mechanisms.

Select the correct match for $X$ and $Y$:

Column $X$	Column $Y$
$(1)$ $DNA$	$(P)$ Most abundant
$(2)$ $m-RNA$	$(Q)$ Various types based on anticodons
$(3)$ $t-RNA$	$(R)$ Carries information as genetic code
$(4)$ $r-RNA$	$(S)$ $A$ specific part acts as a template