Multiple Choice Questions (MCQ) on Microbiology
51- Atmospheric nitrogen enters the biosphere through
(A) Ammonification
(B) Nitrogen fixation
(C) Denitrification
(D) Ammoxification
52- In the bacterial genetic map obtained by conjugation the distance between genes is in
(A) kilobase pairs
(B) minutes
(C) centimorgans
(D) micrometers
53- Zika Virus disease is spread through
(A) Mosquito
(B) Termite
(C) Tse tse fly
(D) Dragon fly
54- A common reservoir for rabies virus is
(A) pigeons
(B) humans
(C) raccoons
(D) mosquitoes
55- Agar-agar is produced from
(A) green algae
(B) red algae
(C) brown algae
(D) blue green algae
56- Worldwide, the primary method for transmitting HIV is
(A) homosexual sex
(B) heterosexual sex
(C) use of injecting drugs
(D) blood transfusions
57- Bacteria without cell wall belong to
(A) Mycoplasma
(B) Rickettsia
(C) Bacteroidetes
(D) Halophiles
58- The most important region in the atmosphere for microbial dispersal is
(A) stratosphere
(B) troposphere
(C) ionosphere
(D) strato-ionosphere
59- Paper is made of
(A) hemicellulose
(B) lignin
(C) cellulose
(D) hemicellulose and lignin
60- The microbes found in the atmosphere are
(A) autochthonous
(B) allochthonous
(C) allochthonous as well as autochthonous
(D) neither allochthonous nor allochthonous
ANSWERS:
51-(A), 52-(B), 53-(A), 54-(C), 55-(B), 56-(A), 57-(A), 58-(B), 59-(C), 60-(B)