Which of the following is an incorrect combination?

Match the following:

Column $I$	Column $II$
$A$. $VNTR$	$p$. Largest gene
$B$. Introns and exons	$q$. $DNA$ fingerprinting
$C$. Dystrophin	$r$. Bulk $DNA$
$D$. Satellite	$s$. Splicing

Match the researchers in Column-$I$ with their work given in Column-$II$.

Column-$I$	Column-$II$
$i$. Avery,McCarty,and MacLeod	$a$. $DNA$ digested by DNAse inhibits transformation of $R$ cells to $S$ cells.
$ii$. Griffith	$b$. $DNA$ replication is semi-conservative.
$iii$. Hershey and Chase	$c$. Used Streptococcus pneumoniae.
$iv$. Meselson and Stahl	$d$. Used radioactive Sulphur and Phosphorus.

Select the correct option from the following.

In sickle-cell anemia,what is the sequence of the defective nitrogen base on the $DNA$ strand that does not act as a template?

Match the following and select the correct option:
Column $A$ | Column $B$
$(i)$ Oncogenes | $(1)$ Causes $AIDS$
(ii) Single circular $DNA$ | $(2)$ $Lac$-Operon concept
(iii) Splicing | $(3)$ Component of bacterial chromosome
(iv) Jacob and Monod | $(4)$ Processing of $mRNA$ molecules
| $(5)$ When activated cause cancer
Select the correct sequence for $(i), (ii), (iii), (iv)$ respectively.

Which of the following organisms has been used for genetic research?