Penicillin was discovered by

$A$: Statins are products of the fermentation activity of yeast.
$R$: Statins and mevalonate compete for the same active site on the enzyme involved in cholesterol synthesis.

Trichoderma polysporum is a source of

Acetone may be obtained from starch by the action of:

Which organism is used to ripen Roquefort cheese?

Which of the following drugs have made a significant contribution to human welfare?