Which of the following does not follow the Central Dogma of molecular biology?

Who first suggested the idea of circular flow of genetic information?

How many of the given statements $(i-iv)$ is/are correct?
$i.$ In transcription,adenosine pairs with uracil.
$ii.$ Regulation of lac operon by repressor is referred to as positive regulation.
$iii.$ The human genome has approximately $50,000$ genes.
$iv.$ Haemophilia is a sex-linked recessive disease.

Select the correct statement from the following.

Read the following statements and select the correct statements:
$(A)$ Essential life processes such as metabolism,translation and splicing are evolved around $\text{RNA.}$
$(B)$ Heavy isotope of nitrogen $(^{15}N)$ is a radioactive isotope,while light isotope of nitrogen $(^{14}N)$ is not a radioactive isotope.
$(C)$ The codon in $\text{rRNA}$ is read in a contiguous fashion.
$(D)$ In the first phase of translation,amino acids are activated in the presence of $\text{ATP.}$
$(E)$ $\text{DNA}$ from every tissue from an individual shows a high degree of polymorphism.
Choose the correct answer from the options given below:

Match the following:

Column-$I$	Column-$II$
$(1)$ Ligase	$(p)$ Segment of $DNA$
$(2)$ $RNA$ polymerase + Rho factor	$(q)$ Replication
$(3)$ $RNA$ polymerase	$(r)$ Termination
$(4)$ Cistron	$(s)$ Elongation