Statin produced by the yeast, which have beencommercialized as blood - cholesterol lowering agents ?

Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?

How has the discovery of antibiotics helped mankind in the field of medicine ?

Chloramphenicol and erythromycin (broad spectrum antibiotics) are produced by

Dough kept overnight in warm weather becomes soft and spongy because of