MCQOPTIONS
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MCQOPTIONS
This section includes 285 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Antibiotics can easily reach the staphylococci. |
| A. | True |
| B. | False |
| C. | May be |
| D. | Can't say |
| Answer» C. May be | |
| 102. |
Which toxin causes paralysis of muscles? |
| A. | Diphtheria toxin |
| B. | Botulinum toxin |
| C. | Tetanus toxin |
| D. | Cholera toxin |
| Answer» C. Tetanus toxin | |
| 103. |
Black piedra is a fungus infection of the ___________ |
| A. | skin |
| B. | foot |
| C. | hair |
| D. | nails |
| Answer» D. nails | |
| 104. |
'Transplacental' and 'respiratory' tract is mode of transmission for |
| A. | Parvovirus B19 |
| B. | Poliovirus |
| C. | Adenovirus |
| D. | Hantavirus |
| Answer» B. Poliovirus | |
| 105. |
Human urban yellow fever is transmitted by |
| A. | Mosquito |
| B. | Rats |
| C. | Pigs |
| D. | Monkeys |
| Answer» B. Rats | |
| 106. |
'Ebola' virus is |
| A. | RNA enveloped virus |
| B. | RNA Tumor virus |
| C. | RNA nonenveloped virus |
| D. | DNA envelop virus |
| Answer» B. RNA Tumor virus | |
| 107. |
Study of 'cancer' is known as |
| A. | Cancer study |
| B. | Oncology |
| C. | Pathology |
| D. | Physiology |
| Answer» C. Pathology | |
| 108. |
Most commonly Plasmodium ovale and Plasmodium malariae causes malaria in humans. |
| A. | True |
| B. | False |
| C. | May be |
| D. | Can't say |
| Answer» C. May be | |
| 109. |
Yellow fever is caused by ____________ |
| A. | Alphaviruses |
| B. | Rubellaviruses |
| C. | Flaviviruses |
| D. | Pestiviruses |
| Answer» D. Pestiviruses | |
| 110. |
Which of the following inactivates IgA antibodies? |
| A. | Cord factor |
| B. | Diphthin |
| C. | Neuroaminidase |
| D. | K antigens |
| Answer» C. Neuroaminidase | |
| 111. |
A disease, muscle twitching and lack of coordination, occurs due to a prion, known as |
| A. | Marasmus |
| B. | Kuru disease |
| C. | Cancer |
| D. | Tetanus |
| Answer» C. Cancer | |
| 112. |
Prontosil is |
| A. | an effective antibacterial when used in animals |
| B. | an effective antibacterial when used in in-vitro cultures |
| C. | an effective antibacterial both in animals as well as in in-vitro cultures |
| D. | not used as an antibacterial agent |
| Answer» D. not used as an antibacterial agent | |
| 113. |
African sleeping sickness is caused by which of the following protozoa? |
| A. | Entamoeba histolytica |
| B. | Trypanosoma gambiense |
| C. | Leishmania donovani |
| D. | Plasmodium vivax |
| Answer» C. Leishmania donovani | |
| 114. |
In the human disease cholera, what is it that actually ends up killing the victim? |
| A. | Faulty carrier proteins |
| B. | Dehydration and loss of nutrients |
| C. | Too little water in the food stream |
| D. | the toxin produced by the bacterium |
| Answer» C. Too little water in the food stream | |
| 115. |
Dermatophytic diseases attributed infections to ______________ |
| A. | humans |
| B. | insects |
| C. | monkeys |
| D. | birds |
| Answer» C. monkeys | |
| 116. |
Common 'cold ' is caused by the |
| A. | Reovirus |
| B. | Rhabdoviruses |
| C. | Rhinovirus |
| D. | Hepatitis delta virus |
| Answer» D. Hepatitis delta virus | |
| 117. |
Animals that are routinely infected with a protozoan or parasite are termed as _______________ |
| A. | definitive host |
| B. | intermediate host |
| C. | reservoir host |
| D. | parasitic host |
| Answer» D. parasitic host | |
| 118. |
Miconazole is active against which of the following fungal infections? |
| A. | coccidioidomycosis |
| B. | cryptococcosis |
| C. | moniliasis |
| D. | sporotrichosis |
| Answer» B. cryptococcosis | |
| 119. |
Which of the following temperature is suitable for multiplication of clostridia spores? |
| A. | 109 to116 degree F |
| B. | 100 degree F |
| C. | -2 to 16 degree F |
| D. | 30-40 degree F |
| Answer» B. 100 degree F | |
| 120. |
Which of the following is a major virulence factor of Streptococcus pneumoniae? |
| A. | polysaccharide capsule |
| B. | M protein |
| C. | streptolysin O |
| D. | streptolysin S |
| Answer» B. M protein | |
| 121. |
'Bovine Spongiform encephalopathy' is also known as |
| A. | Mad dog disease |
| B. | Sheep's disease |
| C. | Mad Cow disease |
| D. | Kuru disease |
| Answer» D. Kuru disease | |
| 122. |
Which of the following immunity is protective against infection by S.pyogenes? |
| A. | cell-mediated immunity |
| B. | antigen-antibody immunity |
| C. | humoral immunity |
| D. | no cure present |
| Answer» D. no cure present | |
| 123. |
Pol gene is involved in integration of viral 'DNA' into host cell, with help of enzyme, called |
| A. | Protease |
| B. | Reverse transcriptase |
| C. | Integrase |
| D. | Ligase |
| Answer» D. Ligase | |
| 124. |
Changed in shape, growth properties and other features of tumor cell is called as |
| A. | Benign Tumor |
| B. | Malignant transformation of cell |
| C. | Benign transformation the cell |
| D. | Malignant Tumor |
| Answer» C. Benign transformation the cell | |
| 125. |
Which type of toxin is tetanus toxin? |
| A. | enterotoxin |
| B. | neurotoxin |
| C. | cytotoxin |
| D. | endotoxin |
| Answer» C. cytotoxin | |
| 126. |
Tinea versicolor is caused by _______________ |
| A. | Piedraia hortae |
| B. | Trichosporon beigelii |
| C. | Malassezia furfur |
| D. | Candida albicans |
| Answer» D. Candida albicans | |
| 127. |
A disease in sheep, characterized by demyelinating and pneumonia, known as |
| A. | Visna |
| B. | Scrapie |
| C. | Pneumonia |
| D. | Measles |
| Answer» B. Scrapie | |
| 128. |
'Norovirus' is also known as |
| A. | Rotavirus |
| B. | Poliovirus |
| C. | Norwalk virus |
| D. | Rhabdoviruses |
| Answer» D. Rhabdoviruses | |
| 129. |
The systemic mycoses are caused mainly by air-borne organisms. |
| A. | True |
| B. | False |
| C. | May be |
| D. | Can't say |
| Answer» B. False | |
| 130. |
Mode of transmission for human papilloma virus is skin, as well as a |
| A. | Sexual contact |
| B. | Respiratory tract |
| C. | Nose |
| D. | Eyes |
| Answer» B. Respiratory tract | |
| 131. |
Scarlet fever is similar to the pharyngitis in all respects. |
| A. | True |
| B. | False |
| C. | May be |
| D. | Can't say |
| Answer» C. May be | |
| 132. |
Moniliasis disease is caused by ________________ |
| A. | Histoplasma capsulatum |
| B. | Blastomyces dermatitidis |
| C. | Coccidioides immitis |
| D. | Candida albicans |
| Answer» E. | |
| 133. |
What is the shape of the Rhabdoviruses? |
| A. | bullet |
| B. | circular |
| C. | brick shaped |
| D. | ovoid |
| Answer» B. circular | |
| 134. |
Laboratory diagnosis of Entamoeba histolytica depends on identification in the ___________. |
| A. | blood |
| B. | urine |
| C. | saliva |
| D. | stool |
| Answer» E. | |
| 135. |
Streptococus pyogenes comprises which Lancefield group? |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 136. |
Which of the following antibiotics is most effective? |
| A. | streptomycin |
| B. | tetracycline |
| C. | gentamicin |
| D. | ampicillin |
| Answer» D. ampicillin | |
| 137. |
Which of the following microorganism occurs in swine? |
| A. | Brucella melitensis |
| B. | Brucella abortus |
| C. | Brucella suis |
| D. | Legionella pneumophila |
| Answer» D. Legionella pneumophila | |
| 138. |
MDV virus affects which of the following? |
| A. | chickens |
| B. | cattle |
| C. | humans |
| D. | birds |
| Answer» B. cattle | |
| 139. |
How much time does it take for rupture of infected erythrocytes with P. vivax? |
| A. | 24 h |
| B. | 48 h |
| C. | 72 h |
| D. | 96 h |
| Answer» C. 72 h | |
| 140. |
The B region of diphtheria toxin has the enzymatic activity. |
| A. | True |
| B. | False |
| C. | May be |
| D. | Can't say |
| Answer» C. May be | |
| 141. |
Viral 'gastroenteritis' in young children is caused by |
| A. | Reovirus |
| B. | Rotavirus |
| C. | Both a and b |
| D. | None of these |
| Answer» D. None of these | |
| 142. |
'Conjunctivitis' is caused by |
| A. | Coxackivirus |
| B. | Togavirus |
| C. | Adenovirus |
| D. | Hantavirus |
| Answer» B. Togavirus | |
| 143. |
Member of a family 'flavivirus' is |
| A. | HCV |
| B. | HDV |
| C. | HEV |
| D. | HIV |
| Answer» B. HDV | |
| 144. |
'Burkitt's lymphoma' in African children is caused by |
| A. | Ebola |
| B. | Congo |
| C. | Epstein-Barr virus |
| D. | Lassa virus |
| Answer» D. Lassa virus | |
| 145. |
In Africa and South America 'Jungle yellow fever' is disease of |
| A. | Pigs |
| B. | Monkeys |
| C. | Goats |
| D. | Cattles |
| Answer» C. Goats | |
| 146. |
Erythrasma is caused by which of the following microorganism? |
| A. | Corynebacterium diphtheriae |
| B. | Corynebacterium ulcerans |
| C. | Corynebacterium minutissimum |
| D. | Listeria monocytogenes |
| Answer» D. Listeria monocytogenes | |
| 147. |
All infections do not cause fever and all fevers are not due to infections which of the following is an example of non-infections cause of fever? |
| A. | Typhoid |
| B. | Chicken pox |
| C. | Rheumatic disease |
| D. | Malaria |
| Answer» D. Malaria | |
| 148. |
Schick Test is used for detection of which of the following disease? |
| A. | Diphtheria |
| B. | Tuberculosis |
| C. | Erythrasma |
| D. | Botulism |
| Answer» B. Tuberculosis | |
| 149. |
Polioviruses belongs to which of the following groups? |
| A. | enteroviruses |
| B. | rhinoviruses |
| C. | foot and mouth disease viruses |
| D. | retroviruses |
| Answer» B. rhinoviruses | |
| 150. |
Paramyxovirus, a causative agent for severe bronchiolitis and pneumonia in young children, named as |
| A. | Lassa virus |
| B. | Hantavirus |
| C. | Human Metapmeumovirus |
| D. | Marburg virus |
| Answer» D. Marburg virus | |