Strategies for enhancement in food production Test-9 March 18, 2018admin0 Comments CategoriesNEET-Botany-Strategies for enhancement in food production Strategies for enhancement in food production Test-9 1. Advantages of SCPI) Rich in proteins poor in fatsII) Produced throughout the yearIII) Cultured in any localityIV) Cultured only in labs I, II, III correct I,II,IV correct II,III,IV correct IV correct 2. Micropropagation is usefulI) To generate somaclonal variations which are exploited for crop improvementII) To multiply genetically uniform populationIII) To generate new species IV) To produce heterozygous plants 1 ) I & III are correct III & IV are correct I & II are correct II & III are correct 3. The nutrient culture medium is a mixture ofI) Essential nutrients II) Amino acidsIll) VitaminsIV) Carbohydrates I & II only correct I, II, III, IV correct I,II,III correct I & IV correct 4. Regarding embryoids I) Develop from embyonic cellsII) Develop on callus or explantsIII) Give rise to plants which produce artificial seedIV) Embryogeny resembles that of a sexual embryo I & II correct II & III correct II & IV correct I & IV correct 5. Simple callus culture does not requireI) Vitamins II) NAA III) Cytokinins IV) Carbohydrates I and IV II and III III and IV I and IV 6. Find the correct statements about somatic embryosI) They pass through the developmental stages similar to the sexual embryosII) They are also known as embryoidsIII) They are used for the synthesis of synthetic seeds I and II II and III I and III I, II and III 7. Identify the correct sequence of events involved in tissue culture experiments a) Preparation of explant b) Incubation for growthc) Preparation of nutrient culture mediumd) Acclimatization of plantletse) Inoculation of explantsf) Sterilization of nutrient medium c, f, a, e, b, d c, a, f, e, b, d c, a, e, f, b, d c, d, f, e, b, a 8. Identify the correct sequence of events involved in culturing of tissues and production of plantletsA) Using the laminar air flow chamber B) Adjusting the PH of the nutrient medium C) Transferring the plantlets to soil – rite D) Surface sterilization of the explantE) Using non – absorbent cotton plugs B, E, A, C, D C, E, D, A, B B, E, D, A, C D, A, E, C, B 9. Study the following lists List -IA) Laminar air flow chamberB) AutoclaveC) MicropropagationD) SomaclonalList – IISteam sterilizerVariations through tissue cultureSeed surface sterilizationInoculation variationsMass production of plants invitroThe correct match is ABC D Iv II V III V IV III I IV I V II IV III V II 10. Study the following lists List -IA) MorganB) StewardC) Murashige and SkoogD) Nathans List – III) Basal medium II) Term totipOtency III) Restriction nucleasesIV) Anther cullureV) Experimentally demonstrated toti potencyThe correct match isA B C D II V I III III V I IV V IV III II II V III I 11. Study the following lists List -II) Low cytokinin to auxin ratio II) Low auxin to cytokinin ratio III) Sodium hypochlorite IV) Sodium alginateList – IIA) DisinfectantB) Synthetic seedsC) Solidifying agentD) Rhizogenesis E) CaulogensisThe correct match is I-E; II = D;III = B;IV =A I = C; II = D; III = A; IV = B I – D; II – E; III = A; IV = B I =B; III = A; III = D; IV = C 12. Haploids are more suitable for mutation studies than the diploids. This is because haploids are more abundant in nature than diploids all mutations, whether dominant or recessive are expressed in haploids haploids are reproductively more stable than diploids mutagens penetrate in haploids more effectively than in diploids 13. Somaclones are obtained by plant breeding irradiation genetic engineering tissue culture 14. In maize, hybrid vigour is exploited by inducing mutations bombarding the protoplast with DNA crossing of two inbreed parental lines harvesting seeds from the most productive plan 15. The technique of obtaining large number of plantlets by tissue culture method is called plantlet culture organ culture micro propagation macro propagation Loading … Related posts: Strategies for enhancement in food production Test-4 Strategies for enhancement in food production Test-5 Strategies for enhancement in food production Test-6 Strategies for enhancement in food production Test-7 Strategies for enhancement in food production Test-8 Powered by YARPP.