SPSC Lecturer Botany Past Paper 25-06-2013 1- Stele of stem in which xylem is in the centre surrounded by a narrow band of phloem is called as: A. B. C. D. View Answer Answer : C. Plectostele Description 2- Higher gymnosperms differ from pteridophytes in having well-defined: A. B. C. D. View Answer Answer : B. Secondary growth Description 3- The seed formation in gymnosperms occur due to permanent retention of: A. MicrosporeB. MegasporeC. MacrosporeD. Statospore View Answer Answer : B. Megaspore Description 4- Point of attachment of seed inside ovary is called: A. MegasporeB. LoculeC. PlacentaD. Funiculus View Answer Answer : D. Funiculus Description 5- The ending suffix for orders is: A. -ceaeB. -idae C. -alesD. -cota View Answer Answer : C. -ales Description 6- Phylogenetic system of classification is based on: A. Morphological relationships oforganisms B. Evolutionary relationship of organismsC. Cytological relationship of organisms D. Chromosomal relationship of organisms View Answer Answer : B. Evolutionary relationship of organisms Description 7- The stems with hollow internodes are known as: A. Jointed stems B. Cylindrical stemsC. Herbaceous stems D. Fistular stems View Answer Answer : D. Fistular stems Description 8- Two major products of light reaction of photosynthesis are: A. ATP & CoA B. ATP & NADPH C. ATP & FADH₂ D. ATP & NADH View Answer Answer : B. ATP & NADPH Description 9- The compound acting as chromophore in the phytochrome is: A. PhytochromobilinB. PhycocyanobilinC. PhycoerythrobilinD. Phytophagobilin View Answer Answer : A. Phytochromobilin Description 10- In mitochondrial electron transport chain, the oxidation of complex III and reduction of complex IV is mediated by: A. Cytochrome a B. Cytochrome b C. Cytochrome c D. Cytochrome d View Answer Answer : C. Cytochrome c Description 11- The culminating stage of plant succession in a given ecosystem is: A. ClimateB. ClimaxC. CleavesD. Connectance View Answer Answer : B. Climax Description 12- Function of enzyme reverse transcriptase is: A. Synthesis of gDNA from mRNA B. Synthesis of mRNA from DNA C. Synthesis of tRNA from mRNAD. Synthesis of cDNA from mRNA View Answer Answer : D. Synthesis of cDNA from mRNA Description 13- Diagnosis of a genetic condition before the appearance of symptoms is: A. Morphological diagnosis B. Pre symptomatic diagnosisC. Postsymptomatic diagnosis D. Somatic diagnosis View Answer Answer : B. Pre symptomatic diagnosis Description 14- Fuels which have lower emissions than conventional gasoline and diesel are: A. Perceptible fuels B. Soluble fuels C. Dirty fuels D. Clean fuels View Answer Answer : D. Clean fuels Description 15- Meiosis in the capsule leads to the formation of one kind of spores thus making the bryophytes: A. EusporousB. NeosporousC. HomosporousD. Metasporous View Answer Answer : C. Homosporous Description 16- During synthesis, the spectral properties of chlorophyll are attained with the insertion of: A. Fe in the tetrapyrrole ringB. Mg in the tetrapyrrole ringC. Mn in the tetrapyrrole ring D. Mo in the tetrapyrrole ring View Answer Answer : B. Mg in the tetrapyrrole ring Description 17- Set of conditions in which an organism completes its life cycle is: A. NicheB. VenueC. HasitD. Habitat View Answer Answer : D. Habitat Description 18- The total quantity of living matter in a given area or ecosystem is: A. BiosphereB. RibotypeC. BiomassD. Biogenesis View Answer Answer : C. Biomass Description 19- Division of nucleus is termed as: A. CytokinesisB. KaryokinesisC. EukaryoticD. Dikinesis View Answer Answer : B. Karyokinesis Description 20- A mutation occurring in any cell that is not destined to become a germ cell is: A. Point mutation B. Somatic mutationC. Zygotic mutation D. Gametic mutation View Answer Answer : B. Somatic mutation Description 1 2 3
