Which drug is prepared by the bacterium $Pseudomonas$?

Retting of fibres is caused by

Which of the following enzymes is secreted by yeast and is responsible for fermentation?

$A$: 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.

Cyclosporin $A$ is produced from which organism?

Which vitamin is produced by $Ashbya$ $gossypii$?