Test Your Knowledge - Free MCQ PRACTICE
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DRIVINGTEST
A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.
For each of the following multiple choice questions, choose the most appropriate answer :

1. Which of the following toxin causing botulism is less toxic to human beings?
A. Type A
B. Type B
C. Type C
D. None of these

2. Which of the following is correct for CD8 T cells?
A. CD8 T cells only recognize virus-infected cells
B. CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells
C. In the thymus, CD8 T cells undergo positive selection only, whereas CD4 T cells undergo negative selection only
D. CD8 T cells can kill individual virus-infected cells in a contact dependent fashion

3. Which of the following is/are included in Kingdom Prokaryotae?
A. Bacteria
B. Protozoa
C. Fungi
D. All of these

4. Which of the following is considered the most unifying concept in biology?
A. Taxonomy
B. Anatomy
C. Genetics
D. Evolution

5. The number of sets of chromosomes in a dikaryotic cell
A. is greater than diploid cell
B. is lesser than diploid cell
C. is equal to diploid cell
D. none of these

6. The causative agent of Buruli ulcer is
A. M chelonei
B. M marinum
C. M fortuitum
D. M ulcerarts

7. Which of the following characteristic of the Rotavirus was important for the construction of the Rotashield vaccine?
A. The possession of a segmented RNA genome
B. A limited number of capsule types
C. The ability of monkey Rotavirus strains to cause serious illness (diarrhea) in human beings
D. The ability of the Rotavirus to be transmitted faster

8. Antibodies to which of the following antigens of Bacillus anthracis are protective?
A. Capsular polypeptide
B. Somatic polysaccharide
C. Anthrax toxin
D. None of these

9. Which of the following disinfectant is effective against viruses?
A. Hydrogen peroxide
B. Hypochlorite
C. Formaldehyde
D. All of these

10. Gram staining was introduced by
A. Christian gram
B. Alfred Gram
C. Robertcook
D. Louis Pasteur

11. In glycolysis, ATP is created by
A. photophosphorylation
B. the chemiosmotic mechanism
C. substrate level phosphorylation
D. the pentose phosphate pathway

12. Legionella pneumophila spreads by
A. Person to person
B. C Aerosol
C. Infected Meat
D. Water Drinking which is contaminated

13. The virus(es) which can cause aseptic meningitis is/are
A. Polioviruses
B. Coxsackieviruses
C. Echo viruses
D. All of these

14. Suppose a eukaryotic cell had a mutation that prevented the production of cytochrome c. As a result of this mutation, which of the following processes would not occur?
A. Cellular respiration
B. Photosynthesis
C. Mitosis
D. Cell wall synthesis

15. Which of the following statement defines a replicon?
A. A DNA molecule that encodes pili for conjugation
B. A DNA molecule that is able to replicate and be maintained
C. A DNA template which is used in transcription
D. The enzyme responsible for transposition

16. Which of the following is not the characteristic of a growth curve?
A. Shows development of microbial population under relatively stable environmental conditions
B. Plotted with logarithmic numbers
C. Graphs numbers of microbes versus time
D. Each growth curve consists of four distinct phases

17. Cycloserine inhibits
A. alanine racemase
B. D-alanyl - D-alanine synthetase
C. Both A and B
D. amidase

18. Organisms with amoeboid cells that move within a network of mucous tracks using a typical gliding motion belong to which phylum of Protozoa?
A. Labyinthomorpha
B. Microspora
C. Apicomplexa
D. Myxozoa

19. The biogas production process takes place at the temperature
A. lesser than 25C
B. 25-40C
C. 45-60C
D. all of these

20. Which of the following organism is found at the initial stages in the batter of Idli?
A. Leuconostoc mesentroides
B. Aspergillus niger
C. Bacillus natio
D. None of these

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