MCQOPTIONS
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MCQOPTIONS
This section includes 375 Mcqs, each offering curated multiple-choice questions to sharpen your Bachelor of Agriculture (BSc agri) knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Cycloserine related to the amino acid in structure |
| A. | Serine |
| B. | Aspergine |
| C. | Alanine |
| D. | None of these |
| Answer» D. None of these | |
| 102. |
Which one of the following tissues can metabolize glucose, fatty acids and ketone bodies for ATP production? |
| A. | Liver |
| B. | Muscle |
| C. | Brain |
| D. | R.B.C |
| Answer» C. Brain | |
| 103. |
What are the structural units of nucleic acids? |
| A. | N-base |
| B. | Nucleosides |
| C. | Nucleotides |
| D. | Histones |
| Answer» D. Histones | |
| 104. |
Nergibodies produced by rabies virus show characteristic _____ inner granues |
| A. | Basophilic |
| B. | Eosinophilic |
| C. | Neutrophilic |
| D. | Acidophilic |
| Answer» B. Eosinophilic | |
| 105. |
Rabies Virus isolated from natural human or animal infection is termed as |
| A. | Street viru |
| B. | Fixed virus |
| C. | Both a and b |
| D. | None of these |
| Answer» B. Fixed virus | |
| 106. |
Neurological complications following rabies vaccines is common with |
| A. | Chick embryo vaccine |
| B. | HDCS vaccine |
| C. | Semple vaccine |
| D. | BPL vaccine |
| Answer» D. BPL vaccine | |
| 107. |
In gram positive and gram negative bacteria the electron transport contains |
| A. | Naphthquinone |
| B. | Plastoquinone |
| C. | Ubiquinone |
| D. | Both a and b |
| Answer» B. Plastoquinone | |
| 108. |
Sulphur can be utilized by bacteria in the form of |
| A. | Organic compounds |
| B. | Inorganic compounds |
| C. | Elemental compounds |
| D. | All of the above |
| Answer» B. Inorganic compounds | |
| 109. |
The natural reservoir of infection for cholera is |
| A. | Flie |
| B. | Horse |
| C. | Man |
| D. | None of these |
| Answer» D. None of these | |
| 110. |
The bacterial culture prepared by pure culture is |
| A. | Inoculum |
| B. | Suspension |
| C. | Dilution |
| D. | None of these |
| Answer» B. Suspension | |
| 111. |
During conjunction the genetic material will be transferred through |
| A. | Cell wall |
| B. | Medium |
| C. | Pili |
| D. | Capsule |
| Answer» D. Capsule | |
| 112. |
A mutation that produces termination codon is |
| A. | Mis-sense mutation |
| B. | Neutral mutation |
| C. | Non-sense mutation |
| D. | Reverse mutation |
| Answer» D. Reverse mutation | |
| 113. |
Which of the following preferably infects reticulocytes? |
| A. | P. ovale |
| B. | P.vivax |
| C. | P.falciparum |
| D. | P.malaria |
| Answer» C. P.falciparum | |
| 114. |
Genetic information transfer DNA to RNA is called |
| A. | Transcriptase |
| B. | Transduction |
| C. | Transformation |
| D. | Recombination |
| Answer» B. Transduction | |
| 115. |
Which of the following is the most specific in diagnosis of AIDS? |
| A. | IHA |
| B. | Western blot |
| C. | ELISA |
| D. | Immuno electrophoresis |
| Answer» C. ELISA | |
| 116. |
The penicillin produced in large scale submerged fermentations are |
| A. | Penicillin-A |
| B. | Penicillin-D |
| C. | Penicillin-G |
| D. | None of these |
| Answer» D. None of these | |
| 117. |
The organisms which can grow both in presence and absence of oxygen |
| A. | Aerobes |
| B. | Anaerobes |
| C. | Faculative anaerobes |
| D. | Strict aerobes |
| Answer» B. Anaerobes | |
| 118. |
AIDS disease is caused by a virus which belongs to |
| A. | Retro virus group |
| B. | Rhabdo virus group |
| C. | Hepatitis virus group |
| D. | Adeno virus group |
| Answer» B. Rhabdo virus group | |
| 119. |
The best medium for the production of Penicillin is |
| A. | Nutrient agar |
| B. | Corn steep liquor |
| C. | Sulfite waste liquor |
| D. | Whey |
| Answer» C. Sulfite waste liquor | |
| 120. |
A culture medium the exact composition of which is not known was called as |
| A. | Simple |
| B. | Complex |
| C. | Defined |
| D. | Natural |
| Answer» B. Complex | |
| 121. |
A gram positive organism which produces swarming on culture medium is |
| A. | Salmonella |
| B. | Clostridium |
| C. | Staphylococci |
| D. | Proteus |
| Answer» E. | |
| 122. |
Culture medium for Mycobacterium tuberculosis |
| A. | LJ medium |
| B. | Mac Conkey s medium |
| C. | Wilson blair medium |
| D. | None of these |
| Answer» B. Mac Conkey s medium | |
| 123. |
Infermentor the top portion left without broth is called |
| A. | Shaft |
| B. | Head space |
| C. | Impeller |
| D. | Sparger |
| Answer» C. Impeller | |
| 124. |
Toxic shock syndrome is caused by the toxin of |
| A. | Staphylococcus aureus |
| B. | Streptococcus pyoge |
| C. | Vibrio cholerae |
| D. | Candida |
| Answer» B. Streptococcus pyoge | |
| 125. |
Bacteria are more sensitive to antibiotics at which phase of growth curve? |
| A. | Decline phase |
| B. | Stationary phase |
| C. | Lag phase |
| D. | Log phase |
| Answer» E. | |
| 126. |
The suitable assay method for antibiotics is |
| A. | Enzymatic assay |
| B. | Turbidometric assay |
| C. | End point determination assay |
| D. | Metabolic assay |
| Answer» D. Metabolic assay | |
| 127. |
Bacterial resistance to antibiotics is transmitted by |
| A. | Transduction |
| B. | Transformation |
| C. | Mutation |
| D. | Plasmids |
| Answer» E. | |
| 128. |
Other than the sample (specimen) the remaining portion is stained then it is called |
| A. | Simple staining |
| B. | Negative staining |
| C. | Differential staining |
| D. | None of these |
| Answer» C. Differential staining | |
| 129. |
Erythromycin belongs to chemical class of antibiotics |
| A. | -lactose |
| B. | Tetracyclines |
| C. | Macrolides |
| D. | Aminoglycosides |
| Answer» D. Aminoglycosides | |
| 130. |
In India, Japanese b encephalitis was first isolated from the mosquitoes of the |
| A. | Culex tritaeriorhynchus |
| B. | Culex annulirostris |
| C. | Culex vishnui |
| D. | None of these |
| Answer» D. None of these | |
| 131. |
The most common mode of cell division in bacteria is |
| A. | Binary fission |
| B. | Transverse binary fission |
| C. | Longitudinal binary fission |
| D. | None of these |
| Answer» D. None of these | |
| 132. |
The mode of spread of tetanus neurotoxin from blood to brain is |
| A. | Via lymphaties |
| B. | Arterial blood |
| C. | Cranial nerves |
| D. | None of these |
| Answer» D. None of these | |
| 133. |
Mode of action of quinolone antibiotics on growing bacteria was thought to be |
| A. | Inhibition of lactamase |
| B. | Prevention of the cross linking of glycine |
| C. | Inhibition of DNA gyrase |
| D. | Inhibition of reverse transcriptase |
| Answer» D. Inhibition of reverse transcriptase | |
| 134. |
The primary cells involved in immune response are |
| A. | NK-cell |
| B. | K-cells |
| C. | Lymphocytes |
| D. | None of these |
| Answer» D. None of these | |
| 135. |
Non-lactose fermenting colonies seen on Mac Conkey s medium are |
| A. | Salmonella typhi |
| B. | Escherichia coli |
| C. | Klebsiella pneumoniae |
| D. | Shigella shigae |
| Answer» B. Escherichia coli | |
| 136. |
Of which clostridia, the neurotoxin is most powerful? |
| A. | Cl. tetani |
| B. | Cl. welchii |
| C. | Cl. botulism |
| D. | Cl. septicum |
| Answer» D. Cl. septicum | |
| 137. |
The commonest cause of rubella in new bornes |
| A. | Congential rubella |
| B. | Post natal rubella |
| C. | Expanded rubella syndrome (ERS) |
| D. | Both a and c |
| Answer» E. | |
| 138. |
Which of the following Salmonella paratyphi is the commonest in India? |
| A. | A |
| B. | B |
| C. | C |
| D. | None of these |
| Answer» B. B | |
| 139. |
Which of the following characters are related to viruses? |
| A. | No growth on inanimate culture media |
| B. | Not sensitive to antibiotics |
| C. | No energy producing enzymes |
| D. | Insensitive to interferon |
| Answer» E. | |
| 140. |
The protein moiety of an enzyme is known as |
| A. | Holo enzyme |
| B. | Apo enzyme |
| C. | Co enzyme |
| D. | Enzyme |
| Answer» C. Co enzyme | |
| 141. |
In bacteria, the increase in population is in the manner |
| A. | Geometric progression |
| B. | Multiplication |
| C. | Doubling |
| D. | None of these |
| Answer» B. Multiplication | |
| 142. |
The vitamin required for Lactobacillus species is |
| A. | Riboflavin |
| B. | Niacin |
| C. | Pyridoxine |
| D. | Folic acid |
| Answer» C. Pyridoxine | |
| 143. |
Glutamic acid is oxidized by the species except |
| A. | melienasis |
| B. | abortus b. |
| C. | B. suis |
| D. | B.canis |
| Answer» E. | |
| 144. |
The following Penicillium species are pathogenic except |
| A. | P. commune |
| B. | P. bicolor |
| C. | P. glaucum |
| D. | P.notatum |
| Answer» E. | |
| 145. |
Which of the following is not related to congenital syphilis? |
| A. | Aneurysm |
| B. | Saddle nose |
| C. | Still birth |
| D. | Hutchiso s teeth |
| Answer» B. Saddle nose | |
| 146. |
Which of the following amoeba does not live in large intestine ? |
| A. | Entamoeba coli |
| B. | Entamoeda histolytica |
| C. | Endolimax nana |
| D. | Entamoeba gingivalis |
| Answer» E. | |
| 147. |
The orderly increase in the quantity of all of the cellular components is known as |
| A. | Reproduction |
| B. | Growth |
| C. | Binary fission |
| D. | None of these |
| Answer» C. Binary fission | |
| 148. |
Epidemic pleurodynia and myocarditis of new born infants are both caused by |
| A. | Group B cox sack virus |
| B. | Reovirus |
| C. | Polyomavirus |
| D. | Cytomegalovirus |
| Answer» B. Reovirus | |
| 149. |
The orderly increase in the quantity of all the cellular components is known as |
| A. | Reproduction |
| B. | Growth |
| C. | Binary fission |
| D. | None of these |
| Answer» C. Binary fission | |
| 150. |
The cellular immune response is mediated by |
| A. | B cell |
| B. | T cell |
| C. | BT cells |
| D. | Endothelial cells |
| Answer» B. T cell | |