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.
| 1. |
One of the free-living, anaerobic nitrogen-fixer is Or which of the following is a photoautotrophic bacteriumA. AzotobacterB. BeijernickiaC. RhodospirillumD. Rhizobium |
| Answer» Correct Answer - C | |
| 2. |
In chlorophyta the mode of sexual reproduction is :-A. IsogamyB. AnisogamyC. OogamyD. Isogamy, Anisogamy and oogamy |
| Answer» Correct Answer - D | |
| 3. |
Plant group which shows Heterotrophic mode of nutrition is :-A. AlgaeB. FungiC. BryophytesD. Pteridophytes |
| Answer» Correct Answer - B | |
| 4. |
In which of the following zygote further develops to form a diploid structure ?A. ThallophytaB. BryophytaC. AlgaeD. Fungi |
| Answer» Correct Answer - B | |
| 5. |
Fungi are ecologically important because :-A. They yield antibioticsB. They are used in genetic studiesC. They function as decomposersD. All the above |
| Answer» Correct Answer - C | |
| 6. |
Mosses are gregarious because they :-A. Have vascular tissueB. Have indirect germination of sporesC. Have direct germination of sporesD. Have spore mother cells |
| Answer» Correct Answer - B | |
| 7. |
Aquatic ancestry of bryophytes is evidenced by :-A. Their green colourB. thread like protonemaC. Many aquatic bryophytesD. Flagellted male gametes |
| Answer» Correct Answer - D | |
| 8. |
In which bryophyta germiantioin of spore is indirect :-A. RicciaB. RhizopusC. PucciniaD. Funaria |
| Answer» Correct Answer - D | |
| 9. |
Water is essential in bryophyta:-A. For fertilization and homosporous natureB. Water should be filled in archegonium for fertilizationC. Water is necessary for movement of spermD. For dissemination spores |
| Answer» Correct Answer - C | |
| 10. |
Bryophytes show an advancement over algae in :-A. Having multicellular sporophytic generationB. Having parasatic sporophyteC. Having zygotic meiosisD. None of the above |
| Answer» Correct Answer - A | |
| 11. |
Consider the following four statements whether thy are correct or wrong: a) The sporophyte in liverworts is more elaorate than that is mosses. b) Salvinia is heterosporous c) The life-cycle in all seed-bearing plants is diplontic d) In Pinus male and female cones are borne on different trees. The two wrong statements together are:A. Statements a) and b)B. Statements a) and c)C. Statements a) and c)D. Statements b) and c) |
| Answer» Correct Answer - C | |
| 12. |
Which of the following statement is true for bryophyta?A. Along with water absroption roots also provide anchorment to plantsB. Sporophyte is dominantC. Gametophyte is dominant and sporophyte is mostly parasite.D. Gametophyte is parastic |
| Answer» Correct Answer - C | |
| 13. |
Read the following five elements (A -E) and answer as asked next to them:- a) In Equisetum the female gametopyte is retained on the parent sporophyte b) In Ginkgo male gametophyte is not independent c) The sporophyte in Riccia is more developed than that in Polytrichum d) sexual reproduction in -Volvox is isogamous e) The spores of slime molds lack cell walls How manyof the above statements are correct?A. FourB. OneC. TwoD. Three |
| Answer» Correct Answer - B | |
| 14. |
Moss sporophyte is diffentiated in :-A. Stem & leavesB. Root, stem and leavesC. Rhizoids, stem & leavesD. None of these |
| Answer» Correct Answer - D | |
| 15. |
In a moss the sporophyteA. arises from a spore produced from the gametophyteB. manufactures food for itself, as well as for the gametophyteC. is partially parasitic on the gametophyteD. produces gametes that give rise to the gametophytes |
| Answer» Correct Answer - C | |
| 16. |
Moss peat is used as a packing material for sending flowers and live plants to distant places becauseA. It reduces transpirationB. it serves as a disinfectantC. it is easily availableD. it is hygroscopic |
| Answer» Correct Answer - D | |
| 17. |
Which bryophyta is known as Peat moss ?A. RicciaB. RiellaC. SphagnumD. Marchantia |
| Answer» Correct Answer - C | |
| 18. |
A leafy non vascular plant with parasatic sporophytic generation should properly be classified inA. ThallophytaB. BryophytaC. PteridophytaD. Spermatophyta |
| Answer» Correct Answer - B | |
| 19. |
Oblique septa are found in which part of moss :-A. Rhizoids of sporophyteB. Rhizoids of gametophyteC. LeavesD. Stem |
| Answer» Correct Answer - B | |
| 20. |
In which organisms external fertilization occurs:A. Echinodermata/MossB. Hemichordata / FernC. Reptila/ GymnospermD. Amphibia / Algae |
| Answer» Correct Answer - D | |
| 21. |
Which type of fertilization is found in bryophytes ?A. SiphonogamousB. ZooidogamousC. Zoodio-siphonogamousD. Fertilization is not found |
| Answer» Correct Answer - B | |
| 22. |
In bryophytes fertilization takes place :-A. At low tempB. In dry conditionC. In presence of waterD. In above all situation |
| Answer» Correct Answer - C | |
| 23. |
Double fertilization and triple fusion are characteristic of :-A. SpermatophytaB. GymnospermsC. PteridophytaD. Angiosperms |
| Answer» Correct Answer - D | |
| 24. |
Oblique septa in rhizoids are characteristic of :-A. LiverwortsB. HornwortsC. MossesD. Ferns |
| Answer» Correct Answer - C | |
| 25. |
Rhizoids containing sporophytic plants are characteristic of :-A. BryopsidaB. SpernopsidaC. CycadophytaD. Psilopsida |
| Answer» Correct Answer - D | |
| 26. |
Phycobillins are characteristic pigments of :-A. Rhodophyta and phaeophytaB. Rhodophyta and PyrophytaC. Pyrophyta and CyanophytaD. Rhodophyta and Cyanophyta |
| Answer» Correct Answer - D | |
| 27. |
Pigments I Phaeophycae:-A. Chlorophyll aB. Chlorophyll cC. FucoxanthimD. All the above |
| Answer» Correct Answer - D | |
| 28. |
Evolutionary history of a group of organisms is called `:`A. PaleontologyB. OntogenyC. PhylogenyD. Ancestry |
| Answer» Correct Answer - C | |
| 29. |
Which one of the following is considered important in the development of seed habit Or Seloginella has the character of evolutionary importance. That character isA. Free-living of seed habit?B. Dependent sporophyteC. HeteosporyD. Haplontic life cycle |
| Answer» Correct Answer - C | |
| 30. |
Generally red algae do not form:-A. ZoosporeB. Non-motile sporeC. Non-motile gameteD. None of these |
| Answer» Correct Answer - A | |
| 31. |
Match the following list of microbes and their importance A. a-iii, b-I, c-iv, d-iiB. a-iii, b-iv, c-I, d-iiC. a-iv, b-iii, c-ii, d-iD. a-iv, b-ii, c-I, d-iii |
| Answer» Correct Answer - B | |
| 32. |
The bacterium (Clostridium botulinum) that causes botulism isA. a facultative aerobeB. an obligate aerobeC. a facultative anaerobeD. an obligate anaerobe |
| Answer» Correct Answer - D | |
| 33. |
Deepest algae in sea are :-A. Red algaeB. Brown AlgaeC. Green AlgaeD. Golden Algae |
| Answer» Correct Answer - A | |
| 34. |
Which of the following are likely to be present in deep sea water?A. Saprophytic fungiB. ArchaebacteriaC. EubacteriaD. Blue-green algae |
| Answer» Correct Answer - B | |
| 35. |
Two microbes found to be very useful in genetic engineering are :A. Diplococcus sp. And Pseudomonas sp.B. Crwon gall bacterium and Caenorhabditis elegansC. Escherichia coli and Agrobacterium tumefaciensD. Vibrioi cholerae and a tailed bacteriophage |
| Answer» Correct Answer - C | |
| 36. |
Which organisms is responsible for red surface of sea?A. EuglenaB. GonyaulaxC. AmoebaD. Paramecium |
| Answer» Correct Answer - B | |
| 37. |
Crown galls in plants is caused by bacterium which is most widely used in genetic engineering is:-A. E.coliB. AgrobacteriumC. PseudomonasD. Nitrosomonas |
| Answer» Correct Answer - B | |
| 38. |
Main reason of water bloom in rivers, lakes, sea etc. is:A. Brown algae and green algaeB. Cyanobacteria and dinoflagellatesC. EichorniaD. Fishes |
| Answer» Correct Answer - B | |
| 39. |
Which one of the following bacteria has found extensive use in genetic engineering work in plants?A. Clostridium septicumB. Xanthomonas citriC. Bacillus coagulensD. Agrobacterium tumefaciens |
| Answer» Correct Answer - D | |
| 40. |
Which arrangement is in correct ascending order?A. species `lt` genus `lt` order `lt` familyB. Genus `lt` species `lt` family `lt` orderC. Order `lt` family `lt` Genus `lt` speciesD. Species `lt` genus `lt` family `lt` order |
| Answer» Correct Answer - D | |
| 41. |
Genetic material of prokaryotic cell:-A. Non histonic double stranded DNAB. Histonic double stranded DNAC. Histrone and DNA both are absentD. Histone without DNA |
| Answer» Correct Answer - A | |
| 42. |
Curing of tea leaves is brought about by the activity ofA. VirusesB. fungiC. bacteriaD. mycorrhiza |
| Answer» Correct Answer - C | |
| 43. |
Classification of algae is mainly based on :-A. Reproductive organsB. Structure of sporesC. PigmentsD. Stored food |
| Answer» Correct Answer - C | |
| 44. |
The leaves of Pteridophyta are:-A. MicrophyllsB. MegaphyllsC. Both 1) and 2)D. None of these |
| Answer» Correct Answer - C | |
| 45. |
Cone bearing pteridophyta are :-A. Lycopsida and PsilopsidaB. Filicinae and LycopsidaC. Filicinae and SphenopsidaD. Lycopsdia and Sphenopsida |
| Answer» Correct Answer - D | |
| 46. |
Pteridophyta differs from bryophyta in having :-A. Vascular tissueB. ArchegoniaC. Alteration of generationsD. Motiles sperm |
| Answer» Correct Answer - A | |
| 47. |
phylogentic system of classification is based onA. Floral relationshipB. Evolutionary relationshipC. Morphological featuresD. Chemical constituents |
| Answer» Correct Answer - B | |
| 48. |
Leguminous plants are able to fix atmospheric nitrogen through the process of symbiotic nitrogen fixation. Which one of the following statements is not correct for this process of nitrogen fixation ?A. Nodules act as sites for nitrogen fixationB. The enzymes nitrogenes catalyses the conversion of atmosphere `N_(2)` to `NH_(3)`C. Nitrogenase is insensitive to oxygenD. Leghaemoglobin scavenge oxygen and pinkish in colour |
| Answer» Correct Answer - C | |
| 49. |
In pteridophyta, reduction division occurs when :-A. Prothallus is formedB. Spores are formedC. Sex organs are formedD. Gametes are formed |
| Answer» Correct Answer - B | |
| 50. |
Division "Tracheophyta" includes :-A. BryophytaB. All vascular plantsC. All non-vascullar plantsD. All non-vascular and vascular plants |
| Answer» Correct Answer - B | |