Botany Lecturer Assistant Professor Entrance Examination by Kerala PSC 2009 Part 4 (by...

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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–4(Questions76–10)(MCQ013)

76. Amanwhoisaffectedwithphenylketonuriamarriesawomanwhoisheterozygousatthatlocus.Whatistheprobabilitythattheirfirstchildwillhavephenylketonuria?

a. 1/8b. ¼c. ½d. ¾

77.Which component of transcribed RNA in eukaryotes is present in the initialtranscriptbutisremovedbeforetranslationoccurs?

a. Intronb. 3’polyAtailc. Ribosomebindingsited. 5’cap

78. Thesynthesisofglucosefromlactate,glycerol,oraminoacidiscalled:a. Glycogenolysisb. Glycolysisc. Lipolysisd. Gluconeogenesis

79. Phaeophytin is a chlorphyll in which central Mg atom is replaced by: (questionremoved)

a. Ironb. Oxygenc. Hydrogend. Manganese

80. Eachdivisionofstatemicrometerequalto:a. 0.01mmb. 1µmc. 0.1mmwww.easybiologycla

ss.co

m

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d. Noneoftheabove81. Basicunitusedforvirusmeasurementis:

a. Micrometerb. Nanometerc. Millimeterd. Alloftheabove

82. Theoxidationofamoleculeofpalmiticacid,CH3(CH2)14CO2H:a. Yield8moleculesofacetyl‐CoAandsomeATPandwaterb. Yields16moleculesofacetyl‐CoAonlyc. Yieldscarbondioxideandwateronlyd. UsesmoreATPthanitgenerates

83. Whichgenusofbacterialistedbelowgrowsbestat70‐100oC?a. Pyrococcusb. Halobacteriumc. Methanosarcinad. Escherichia

84. ϕX174has:a. doublestrandedRNAb. singlestrandedRNAc. SinglestrandedDNAd. DoublestrandedDNA

85. Heat shockproteinswereoriginallydescribedasproteinproduced in response toheatstress.Someareknowntoactas:

a. Molecularchaperonesthatregulateproteinfoldingb. Protein‐tyrosinekinaseproteinc. Proteasethatdegradeubiquitone‐taggedproteind. GTPaseactivatingprotein

86. M13isa:a. Plasmidvectorb. Cosmidvectorc. Viralvectord. Phagemidvector

87. Whichofthefollowingishavingaproteinaceousinfectiousagent?a. Virioidsb. Mycoplasmac. Scrapied. Virus

88. Differentialdistributionofphotoassimilatesindifferentsinksoftheplantiscalled:www.easybiologyclass.

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a. Separationofassimilatesb. Assimilatespartitioningc. Storageofphotoassimilatesd. Photo‐assimilatesconsumption

89. Redoxpotentialvalue(E0)ofNAD/NADHsystemis:a. –0.1Vb. +0.1Vc. –0.32Vd. +0.32V

90. Which of the following plant has become an important research tool to plantmolecularbiologists?

a. Brassicacampestrisb. Arabidopsisthalianac. Lathyrusodoratusd. Xanthiumstrumarium

91. Whichofthefollowingisnotacomponentofmitochondrialelectrontransport?a. Ubiquinoneb. CytochromeB6c. Cytochromecd. Cytochromea3

92. WhichofthefollowingGAisimmediateprecursorofallotherGA’sinplants?a. GA1b. GA2c. GA10d. GA12

93. WhatwouldbethefrequencyofAABBCCindividualsfromamatingoftwoAaBbCcindividuals?

a. 1/64b. 1/32c. 1/16d. 1/8

94. Thefollowinggenotypesarefoundinapopulation:AA–70,Aa–50,aa–20.WhataretheallelefrequenciesofAanda?

a. A=0.86anda=0.14b. A=0.68anda=0.32c. A=0.63anda=0.36d. A=0.32anda=0.68

95. Differentialdistributionofsubstancesintheeggmosttypicallyresultsin:www.easybiologyclass.

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a. Differenceingeneexpressionwhichmayestablishapatternintheembryoasthecelldivide

b. Amplificationofspecificgenesduringdevelopmentc. Lossofspecificgenesduringdevelopmentd. Dominanceofgenesderivedfromthefather

96. Tracingofacelllineageduringdevelopmentmeansthat:a. Thecellsgivingrisetoandderivedfromaspecificcellareknownb. Theregulatorygenesfortheorganismhavebeengeneticallymappedc. Cellcomponentsinthemembraneinvolvedinsignalinghavebeenisolatedd. Cellcomponentsinthenucleusinvolvedinsignalinghavebeenlocated

97. Positionalcloningrefersto;a. UsingaselectionproceduretocloneacDNAb. CloningaportionofgeneusingPCRc. Isolatingagenefromaspecifictissueinwhichitisbeingexpressedd. Mappingagenetoachromosomalregionandthenidentifyingandcloninga

genomiccopyofthegenefromtheregion.98. Whichofthefollowingshowsthecorrecthierarchyinthemolecularorganizationof

cells?a. Metabolic inter mediates – building blocks – macro molecules – supra

molecularassembliesb. Organelles – building blocks – macro molecules – precursors from the

environmentc. Precursors from the environment – metabolic intermediates – macro

molecules–buildingblocksd. Building blocks – macro molecules – precursors from the environment –

supramolecularassemblies99. Whichofthefollowingstatementsaboutheritabilityaretrue?

a. Isameasureoflevelofgenelinkageb. Isameasureofinbreedingc. IsameasureofproportionofrepeatedDNAinanorganismd. Isameasureoftheproportionofvariationthatisduetogeneticcauses

100. Rhyniabelongstoageologicalperiodcalled:a. Carboniferousb. Permeanc. Devoniand. Cambrian

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Botany Lecturer Assistant Professor Entrance Examination by Kerala PSC 2009 Part 4 (by...

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