MCQ
Commercial extraction of penicillin was done by
  • A
    Alexander Fleming
  • B
    Ernest Chain
  • C
    Howard Florey
  • More than one option is correct

Answer

Correct option: D.
More than one option is correct
d
Commercial extraction of penicillin was done by Ernest Chain and Howard Florey.

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

Similar questions

Which one is mismatched?
Seminiferous tubules open into
Which characters for columnar or cuboidal are incorrect from given characters ?
(i) The cuboidal epithelium is composed of a single layer of tall and slender cells.
(ii) Nuclei in cells of cuboidal epithelium are located at the base.
(iii) The free surface of columnar epithelium may have microvilli.
(iv) The columnar epithelium is found in the lining of stomach and intestine and help in secretion and absorption.
(v) Ciliated epithelium is modified columnar or cuboidal cells and bear cilia on their free surface.
(vi) The function of ciliated epithelium is to move particles or mucus in a specific direction over the epithelium.
(vii) Epithelium is present in the inner surface of hollow organs like bronchioles and fallopian tubes.
Which of the following is not a component of Fallopian tube?
Neural signals through ............ can increase the rate of heart beat, the strength of ventricular contraction and there by the cardiac output.
In the matrix lies the bone cells, called
Which is correct sentence?
In which one of the following the genus name, its two characters and its class/phylum are correctly matched?Genus name Two characters Class/Phylum

  Genus name Two characters Class/Phylum
$(a)$ Ascaris $(i)$ Body segmented Annelida
    $(ii)$ Males and females distinct  
$(b)$ Salamandra $(i)$ A tympanum represents ear Amphibia
    $(ii)$ Fertilization is external  
$(c)$ Pteropus $(i)$ Skin possesses Mammalia
    $(ii)$ Oviparous  
$(d)$ Aurelia $(i)$ Cnidoblasts Coelenterata
    $(ii)$ Organ level of organization  

 

Select the correct match
A. Multiload 375I. Pills
B. VasectomyII. Sterilisation
C. SaheliIII. IUD
Progesterone is