47.Penicillin was discovered by: A. Alexander Fleming B. Ernest Chain and Howard Florey C. Griffith D. Amrita Devi
Option A.Penicillin was discovered by Alexander fleming.Dr Alexander Fleming returned from a holiday to find mould growing on a Petri dish of Staphylococcus bacteria. He noticed the mould seemed to be preventing the bacteria around it from growing. He soon identified that the mould produced a self-defence chemical that could kill bacteria
