11. The first antibody to contact invading microorganisms was
a. IgG
b. IgM
c. IgA
d. IgD
Ans: B
12. The light emitted by luminescent bacteria is mediated by the enzyme
a. Coenzyme Q
b. Luciferase
c. Lactose dehydrogenase
d. Carboxylase reductase
Ans: C
13. Pick out the vector using in human Genome project
a. Phagemid vector
b. Yeast artificial chromosomes
c. Cosmid vectors
d. Yeast episomal plasmids
Ans: B
14. Salt and sugar preserve foods because they
a. Make them acid
b. Produce a hypotonic environment
c. Deplete nutrients
d. Produce a hypertonic environment
Ans: D
15. In a fluorescent microscope the objective lens is made of
a. Glass
b. Quartz
c. Polythene
d. None of these
Ans: C
16. Fixation of atmospheric nitrogen is by means of
a. Biological process
b. Lightining
c. Ultraviolet light
d. All of the above
Ans: D
17. Which one of the following fungi is the most serious threat in a bone marrow transplant unit?
a. Candida albicans
b. Aspergillus
c. Blastomyces
d. Cryptococus
Ans: B
18. Direct microscopic count can be done with the aid of
a. Neuberg chamber
b. Anaerobic chamber
c. Mineral oil
d. Olive oil
Ans: A
19. The image obtained in a compound microscope is
a. Real
b. Virtual
c. Real inverted
d. Virtual inverted
Ans: B
20. Enzymes responsible for alcoholic fermentation
a. Ketolase
b. Zymase
c. Peroxidase
d. Oxidase
Ans: B
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a. IgG
b. IgM
c. IgA
d. IgD
Ans: B
12. The light emitted by luminescent bacteria is mediated by the enzyme
a. Coenzyme Q
b. Luciferase
c. Lactose dehydrogenase
d. Carboxylase reductase
Ans: C
13. Pick out the vector using in human Genome project
a. Phagemid vector
b. Yeast artificial chromosomes
c. Cosmid vectors
d. Yeast episomal plasmids
Ans: B
14. Salt and sugar preserve foods because they
a. Make them acid
b. Produce a hypotonic environment
c. Deplete nutrients
d. Produce a hypertonic environment
Ans: D
15. In a fluorescent microscope the objective lens is made of
a. Glass
b. Quartz
c. Polythene
d. None of these
Ans: C
16. Fixation of atmospheric nitrogen is by means of
a. Biological process
b. Lightining
c. Ultraviolet light
d. All of the above
Ans: D
17. Which one of the following fungi is the most serious threat in a bone marrow transplant unit?
a. Candida albicans
b. Aspergillus
c. Blastomyces
d. Cryptococus
Ans: B
18. Direct microscopic count can be done with the aid of
a. Neuberg chamber
b. Anaerobic chamber
c. Mineral oil
d. Olive oil
Ans: A
19. The image obtained in a compound microscope is
a. Real
b. Virtual
c. Real inverted
d. Virtual inverted
Ans: B
20. Enzymes responsible for alcoholic fermentation
a. Ketolase
b. Zymase
c. Peroxidase
d. Oxidase
Ans: B
More Questions & Answers:-
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I was diagnosed as HEPATITIS B carrier in 2013 with fibrosis of the
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