Question
$AIDS$ is caused by
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$\begin{array}{|l|l|} \hline Column-I & Column-II \\ \hline P\;-\;Cartilage & 1\;-\;PCT \\ \hline Q\;-\;Cuboidal\;epithelium & 2\;-\;Bronchioles \\ \hline R\;-\;Compound\;epithelium & 3\;-\;limbs \\ \hline S\;-\;Cilliated\;epithelium & 4\;-\;Pharynx \\ \hline & 5\;-\;Muscles\;of\;eyes \\ \hline \end{array}$
$I.$ Abnormal development
$II.$ Father
$III.$ Mother
$IV.$ Autosomes
| Microbe | Product | Application |
| $(a)$ Streptococccus | Streptokinase | Removal of clot fromblood vessel |
| $(b)$ Clostridium butylicum | Lipase | Removal of oil stains |
| $(c)$ Trichoderma polysporum | Cyclosporin $A$ | Immuno-suppressive drug |
| $(d)$ Monascus purpureus | Statins | Lowering of blood cholesterol |
The genes $a$ and $b$ could be of