The antigen-binding site are present where on the antibody molecule
on light chain as well as on heavy chain
on light chain only
on variable region and constant region of light chain
on heavy chain only
Trophozoites of Plasmodium occur in
Which one of the following pairs of diseases is viral as well as transmitted by mosquitoes ?
‘Tuberculosis' is caused by
Quinine an important drug for treatment of malaria, is extracted from
Which of the following causes plague?