The base sequence of a segment of $DNA$ is $AAG, GAG, GAC, CAA, CCA$. Which of the following sequences represents a frame-shift mutation?

Match Column-$I$ with Column-$II$:

Column-$I$	Column-$II$
$(a)$ Lactose	$(i)$ Functional part of the gene
$(b)$ Release factor	$(ii)$ Inducer of $Lac$ operon
$(c)$ Histone	$(iii)$ Packaging of $\text{DNA}$
$(d)$ Exon	$(iv)$ Termination of translation

Read the following statements $:-$
$(i)$ Eukaryotic $\text{mRNA}$ is polycistronic whereas prokaryotic $\text{mRNA}$ is monocistronic.
$(ii)$ Prokaryotic $\text{mRNA}$ is cap-less and tail-less whereas eukaryotic $\text{mRNA}$ is with cap and tail.
$(iii)$ The precursor of prokaryotic $\text{mRNA}$ is $\text{hnRNA}$.
$(iv)$ In replication,only one of the strands acts as a template.
$(v)$ In eukaryotes,transcription occurs in the nucleus and translation in the cytoplasm.
Which of the above statements are correct?

The information flow or central dogma of modern biology is:

Which of the following is $NOT$ associated with the study of genetics?

What are informosomes?