InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Plasmids are extrachromosomal genetic materials ofA. VirusB. BacteriaC. AlgaeD. Amoeba |
| Answer» Correct Answer - B | |
| 102. |
Kingdom monera includesA. Procaryotes onlyB. Eucaryotes onlyC. Both A and BD. Mesocaryotes only. |
| Answer» Correct Answer - A | |
| 103. |
Hereditary cyanobacteria reproduce asexually byA. Single stranded DNAB. Double stranded DNAC. Single stranded RNAD. Double stranded RNA. |
| Answer» Correct Answer - B | |
| 104. |
Heterocysts that take part in nitrogen fixation occur inA. NostocB. PolysiophoniaC. FucusD. Ulothrix. |
| Answer» Correct Answer - A | |
| 105. |
Extrachromosomal DNA ofbacteria isA. MesosomeB. MicrosomeC. PlasmidD. Chromosome. |
| Answer» Correct Answer - C | |
| 106. |
Bacteria found in hot acidic aerobic aonditions areA. HalophilesB. ThermoacidophilesC. MethanogensD. Rickettsiae. |
| Answer» Correct Answer - B | |
| 107. |
A plasmid isA. Cannot replicateB. Shows independent assortmentC. Lies alongwith chromosomeD. Can replicate independently. |
| Answer» Correct Answer - D | |
| 108. |
Plasmid isA. Single stranded DNAB. Double stranded circular DNAC. Extrachromosomal linear DNAD. RNA. |
| Answer» Correct Answer - B | |
| 109. |
Bacteria plasmid containsA. RNAB. RNA +ProteinC. DNAD. Photosynthetic structures . |
| Answer» Correct Answer - C | |
| 110. |
R- gene present on plasmid is ment forA. Drug resistanceB. Nitrogen fixationC. LocomotionD. Exchange of genetic material. |
| Answer» Correct Answer - A | |
| 111. |
Bacteria commonly reproduce vegetatively by Or Which one of the following processes results in the formation of clone of bacteriaA. BuddingB. SexuallyC. Binary fissionD. Sporulation. |
| Answer» Correct Answer - C | |
| 112. |
Which is not moneran ?A. MycoplasmaB. Slime MouldsC. ArchaebacteriaD. Eubacteria. |
| Answer» Correct Answer - B | |
| 113. |
Which of the following statements is correctA. All bacteria are heterotrophicB. Bacteria are either heterophic or chemoautotrophicC. Bacteria are either photoautrophic of chemoautrophicD. Bacteria can also be photoautotrophic. |
| Answer» Correct Answer - D | |
| 114. |
Which one of the following processes results in the formation of clone of bacteria ?A. Binary fissionB. ConjugationC. TransductionD. Transformation. |
| Answer» Correct Answer - A | |
| 115. |
Thermococcus, Methanobacterium exemplify,A. Bacteria whose DNA is relaxed or positively supercoiled but which has a cytoskeleton as well as motochondriaB. Bacteria that contain a cytoskeleton and ribosomeC. Archaebacteria that contain proteins homologous to eukaryotic core histonesD. Archaebacteria that lack any hisstones resembling those found in eukaryotes but whose DNA is negatively supercoiled. |
| Answer» Correct Answer - D | |
| 116. |
Botulism is due to contamination ofA. E. coliB. SalmonellaC. ClostridiumD. Pseudomonas. |
| Answer» Correct Answer - C | |
| 117. |
Archaea differ from eubacteria in one of the following fearuresA. They have a rigid wallB. Their cell wall lacks peptidoglycan componentC. They have 16 SRNAD. They are very ancient. |
| Answer» Correct Answer - B | |
| 118. |
Which one is true about domain archaea?A. They differ from both prokaryotes and eukaryotesB. They completely differ from prokaryotesC. They resemble eukarya in all aspectsD. They have some novel features absent in other prokaryotes and eukaryotes. |
| Answer» Correct Answer - D | |
| 119. |
In which kingdom would you include archaea and nitrogen fixing organisma in the five kingdom classificationA. PlantaeB. FungiC. ProtistaD. Monera. |
| Answer» Correct Answer - D | |
| 120. |
Procaryotes which can trap solar energy for ATP synthesis but not for photosynthesis areA. MethanogensB. ThermoacidophilesC. HalophilesD. Cyanochloronta. |
| Answer» Correct Answer - C | |
| 121. |
Pathogenecity of leprosy and tuberculosis is due toA. Wax DB. ProstaglandinsC. CholesterolD. Ergasterol |
| Answer» Correct Answer - A | |
| 122. |
Bacterial cells can be strained withA. Mercuric chlorideB. Crystal violetC. Crystal violet+ iodineD. Safranin. |
| Answer» Correct Answer - B | |
| 123. |
The hydrogen donor in bacterial photosyn- thesis is usuallyA. WaterB. Hydrogen sulphideC. Sulphuric acidD. Ammonia. |
| Answer» Correct Answer - B | |
| 124. |
Assertion : Nitogen - fixing bacteria in legume root nodules survive in oxygen - depleted cells of nodules. Reason : Leghaemoglobin completely removes oxygen from the nodule cells.A. Given below are assertion and reason point out if both are true with reason being correct explanationB. both true but reason is not correct explanationC. assertion true but reason is wrongD. and both wrong |
| Answer» Correct Answer - C | |
| 125. |
Staphylococcus hasA. Cubical colonyB. Bunch -like irregular colonyC. Chain like colonyD. Plate like colony. |
| Answer» Correct Answer - B | |
| 126. |
wine turns sourA. On exposure to lightB. Contamination by aerobic bacteria Acetobacter acetiC. Contamination by anaerobic bacteriaD. On heating. |
| Answer» Correct Answer - B | |
| 127. |
Cell division in blue-green type is more or less similar to that in:A. BacteriaB. Green algaeC. Brown algaeD. Red algae. |
| Answer» Correct Answer - A | |
| 128. |
In bacteria cell division isA. AmitoticB. MitoticC. MeioticD. All the above. |
| Answer» Correct Answer - A | |
| 129. |
An anaerobic nitrogen fixing bacterium isA. AzotobcterB. ChlorobiumC. RhodospirillumD. Clostridium. |
| Answer» Correct Answer - D | |
| 130. |
A free living anaerobic bacterium capable of fixing nitrogen isA. AzotobacterB. RhizobiumC. ClostridiumD. Streptococcus. |
| Answer» Correct Answer - C | |
| 131. |
Chemoautotrophs do not needA. `H_(2)S`B. NitriteC. Ammonium compoundsD. Sunlight. |
| Answer» Correct Answer - D | |
| 132. |
Bacterial protoplasm is granular toA. GolgisomesB. LysosomesC. RibosomesD. Endoplamic reticulum. |
| Answer» Correct Answer - C | |
| 133. |
Gram (+) and Gram (-) forms of bacteria are differentible through staining withA. Saffranin + Gentian VioletB. Saffranin + IodineC. Acetocarmine + IodineD. Crystal Violet + Iodine. |
| Answer» Correct Answer - D | |
| 134. |
Which one converts nitrite to nitrate?A. NitrobacterB. NitrosomonasC. ClostridiumD. Psudomonas. |
| Answer» Correct Answer - A | |
| 135. |
Sambar Lake is found inA. GujaratB. Andhra PradeshC. Madhya PradeshD. Rajasthan |
| Answer» Correct Answer - D | |
| 136. |
Halophilic archaebacterium (Halobacterium salinarum) found in Great Salt Lake and Dead Sea cannot live inA. Less then 3 M `NaCl` concentrationB. Less than 5 M `NaCl` concentrationC. More than 4 M `NaCl concenteationD. More than 3 M `NaCl` concentration. |
| Answer» Correct Answer - A | |
| 137. |
Which are likely to be present in deep sea waterA. Saprophytic fungiB. ArcheabacteriaC. EubacteriaD. Blue- green algae. |
| Answer» Correct Answer - B | |
| 138. |
Putrefying bacteria act uponA. FatsB. CarbohydratesC. ProteinsD. Starch. |
| Answer» Correct Answer - C | |
| 139. |
Some chemosynthetic bacteria use energy obtained from oxidisingA. `N_(2)`B. `H_(2)S`C. PhosphorusD. `CO_(2)`. |
| Answer» Correct Answer - B | |
| 140. |
Chemosynthetic bacteria do not need sunlight to grow becauseA. They prepare their food aithout the help of lightB. They do not like sunlightbrightnessC. Due to absence of chlorophyll they are incapable of manufacturing their own foodD. They use other kinds of light for manufacturing their own food. |
| Answer» Correct Answer - A | |
| 141. |
The murein found in bacterial cell isA. ProteinB. FatC. Organic acidD. Sugar |
|
Answer» Correct Answer - D It is formed by two monosaccharide derivatives, acetly glucosamine and acetyl muramic acid cross -linked to short peptides. |
|
| 142. |
What is trueA. Diatoms produce basidiosporesB. Heterocysts occur in NostocC. Fronds develop in bryophytesD. Multiciliate sperms occur in angiosperms. |
| Answer» Correct Answer - B | |
| 143. |
Murein is not found in the cell wall ofA. DiatomsB. NostocC. EubacteriaD. Blue green algae. |
| Answer» Correct Answer - A | |
| 144. |
The disease caused by bacteria isA. Amoebic dysenteryB. ArthritisC. Beri- beriD. Diphtheria. |
| Answer» Correct Answer - D | |
| 145. |
Cyanobacterial cells which are specialised for nitrogen fixation areA. PhycobilisomesB. HeterocystsC. HormogoniaD. Trichomes. |
| Answer» Correct Answer - B | |
| 146. |
For production of methane , methanogensA. Oxidise carbon dioxideB. Reduce carbonC. dioxideD. Reduce alcohol |
| Answer» Correct Answer - B | |
| 147. |
The common mode of reproduction in bacteria isA. FissionB. BuddingC. Sexual reproductionD. Sporulation. |
| Answer» Correct Answer - A | |
| 148. |
Typhoid is caused byA. Xanthomonas typhosusB. Bacillus dysenteriaeC. Salmonella typhiD. Bacillus diplococcus. |
| Answer» Correct Answer - C | |
| 149. |
The most primitive in the following areA. BryophytesB. GymnospermsC. MonocotsD. Cyanobacteria. |
| Answer» Correct Answer - D | |
| 150. |
Monerans devoid of a wall areA. ActinomycetesB. CyanobacteriaC. MycoplasmaD. Eubacteria. |
| Answer» Correct Answer - C | |