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KeralaPSCBotanyLecturer/AssistantProfessorQuestionPaper(Cat.NO.464/2007)
OriginalquestionpaperofKeralaPSCBotanyLecturer/AssistantProfessor(CategoryNo.464/2007) examination conducted by Kerala PSC (Public Service Commission) on20/06/2009 (Q. Code 196/2009) for the appointment of Botany Lecturer/AssistantProfessorinGovernmentCollegesofKeralaundertheDirectorateofCollegiateEducation,Trivandrum,Kerala.MCQ(MultipleChoiceQuestionsformat)
Part–1(Questions26–50)(MCQ011)
26. Truestatementsaboutretro‐transposonsincludewhichofthefollowing?
I. TheyreplicatethroughanRNAintermediate
II. Theyutilizereversetranscriptaseforreplication
III. Theymaycontainintrons
a. Ionly
b. IIIonly
c. IandII
d. I,IIandIII
27. Themostrecent commonancestorofall landplantswasmost similar tomodern‐
daymembersofwhichgroup?
a. Brownalgae
b. Redalgae
c. Charophyceae
d. Cyanobacteria
28.Whichofthefollowingischaracteristicofalternationofgenerationsinlandplants?
a. Meiosisinsporophytesproduceshaploidspores
b. Gametophytesproducesporesthatdevelopintogametes
c. Eitherthegametophyteorthesporophyteisunicellular
d. Haploidsporophytemakehaploidspores
29. Bryophyteshaveallthefollowingcharacteristicsexcept:
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b. Lignifiedvasculartissue
c. Specializedcellsandtissues
d. Areduced,dependentsporophyte
30. Thefollowingarealladaptationstolifeonlandexcept:
a. Tracheidsofvascularxylem
b. Seeds
c. Reducedgametophytegeneration
d. Chlorophyll
31. WhichoftheseshouldhavehadgenesequencesmostsimilartotheCharophycean
thatwasthecommonancestorofthelandplants?
a. EarlyAngiosperms
b. EarlyGymnosperms
c. EarlyPteridophytes
d. EarlyBryophytes
32. Working from deep geologic strata toward shallow geologic strata, what is the
sequenceinwhichfossilsofthesegroupsshouldmaketheirfirstappearance?
1. Charophyceans
2. Singlecelledgreenalgae
3. Bryophytes
4. Plantswithadominantsporophyte
a. 3,1,2,4
b. 2,4,1,3
c. 2,1,3,4
d. 1,3,2,4
33. Which of the following is not true concerning the sporophyte or gametophyte
generationsoffloweringplants?
a. Thesporophytegenerationisdominant
b. Thesporophytegenerationiswhatweseewhenlookingatalargeplant
c. Thefloweriscomposedofgametophytetissueonlywww.easybiologyclass.
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d. Thegametophytegenerationisnotphotosynthetic
34. Gymnospermsdifferfrombothextinctandextantfernsbecausethey:
a. Havepollen
b. Arewoody
c. Havespores
d. Havemacrophylls
35. Over human history, which process has been most important in improving the
featuresofplantsthathavelongbeenusedbyhumanasstaplefoods?
a. Geneticengineering
b. Sexualselection
c. Artificialselection
d. Pesticideandherbicideapplication
36. Name the structures of seed plants with the proper sex and generation that
producedanther:
a. Malegametophyte
b. Femalegametophyte
c. Malesporophyte
d. Femalesporophyte
37. Agroupoforganismsatanyparticularlevelinaclassificationsystemiscalled:
a. Taxon
b. Species
c. Genus
d. Phylum
38. Thefungithatcauseathlete’sfootareinthephylum
a. Zygomycota
b. Basidiomycota
c. Deuteromycota
d. Ascomycota
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39. Thedangersofdisposingtoxicchemicalsundergroundcametopublicattention in
whichofthefollowinglocations?
a. Bhopal,India
b. Lovecanal,Newyork
c. Minamata,Japan
d. Chernobyl,Ukraine
40. X‐chromosomeinactivation
a. Normallytakesplaceinmalesbutnotfemales
b. TakesplaceinhumansothatthesameXchromosomeisinactiveinallofthe
cellsofafemale
c. Occursinfruitfliesbutnotinmammals
d. Results in genetically turning off one of the two X chromosomes in female
mammals
41. Virusesareassignedtothekingdom:
a. Protista
b. Fungi
c. Archaebacteria
d. Noneoftheabove
42. Prokaryoticorganismsmakeupthe
a. EubacteriaandArchaebacteria
b. Archaebacteria,EubacteriaandProtists
c. ArchaebacteriaandProtists
d. ProtistsandEubacteria
43. Whichchemicalbelowwouldyounotfindinphospholipid?
a. C
b. O
c. H
d. N
44. Totonymisanamewhich:www.easybiologyclass.
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a. Speciesnameexactlyrepeatsthegenusname
b. Whenmorethanonenameisattributedtoaplant
c. Samenamegiventodifferentplants
d. AnamewithoutLatindescription
45. Whichisnotconsideredastheimmediateprobableancestorofangiosperms?
a. Coniferales
b. Pteridospermales
c. Bennettitales
d. Primofilicales
46. Aggregatefruitsdevelopfrom:
a. Apocarpuspistilofasingleflower
b. Syncarpouspistilofasingleflower
c. Apocarpouspistilofaninflorescence
d. Syncarpouspistilofaninflorescence
47. Linnaeussystemofclassificationisbasedon:
a. Habitandhabitat
b. Vegetativecharacters
c. Sexualcharacters
d. Totalcharacters
48. Hesperidiumisthecharacteristicfruitofthefamily:
a. Malvaceae
b. Meliaceae
c. Graniaceae
d. Rutaceae
49. ThetypeofclassificationwhichisalsoknownasAdansonianclassification:
a. Numericaltaxonomy
b. Chemotaxonomy
c. Moleculartaxonomy
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50. BondangleofH‐O‐His:
a. 104.5o
b. 105.4o
c. 104o
d. 105o
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