Download App

STD 12 - 8. microbes in human welfare — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 8. microbes in human welfare1 Mark
MCQ
Sir Alexander Fleming extracted penicillin from
  • A
    Penicillium citrinum
  • ✓
    Penicillium notatum
  • C
    Penicillium chrysogenum
  • D
    Bacillus brevis
✓

Answer

Correct option: B.
Penicillium notatum
b

(b) First antibiotic penicillin from blue -green fungus Penicillium notatum in agar -agar medium, contributed by Sir Alexander Flemming in $1928$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (0.5 Marks)" from STD 12 - 8. microbes in human welfare→STD 12 - 8. microbes in human welfare — all question types→BIOLOGY STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Curd is formed by adding a small amount of curd to milk, which acts as a
→
The product of Monascus purpureus has been commercialised as
→
An extrachromosomal $DNA$, which can be used as vector in gene cloning is called
→
In the double helix model of DNA, what would be the distance between two consecutive base pairs?
→
The total number of nuclei involved in double fertilization in angiosperms are
→
The concept of sudden genetic change which breeds true in a species is represented as:
→
The term “linkage” was coined by
→
The release of eggs from the ovary of human female is called :
→
A man known to be victim of haemophilia marries a normal woman whose father was known to be a bleeder. Then it is expected that
→
The green plants are removed from an aquarium
→