JRF Plant Science Paper 2020/60 Plant Science Paper 2020Pdf Send on Email Given below are two statements:Statement I: When one dominant allele of one gene and recessive allele of another gene are present on one chromosome and their opposite alleles are present on the homologous chromosome, the arrangement is called CisheterozygoteStatement II: When the dominant alleles of two genes are present on one chromosome and their corresponding recessive alleles are present on the homologous chromosome, the arrangement is called Cis-heterozygoteIn the light of the above statements, choose the most appropriate answer from the options given below: Statement I is incorrect but Statement II is true Statement I is correct but Statement II is false Both Statement I and Statement II are true Both Statement I and Statement II are false The isolation distance required for the production of certified seeds of maize composite variety is? 100 m 300 m 200 m 50 m Match List I with List llList IList IIOrganizationLocationA. International Water Management InstituteI. Lima, PeruB. International Rice Research InstituteII. lbadan, NigeriaC. International Institute of Tropical AgricultureIII. Colombo, Sri LankaD. International Centre for PotatoIV. Los Banos, PhilippinesChoose the correct answer from the options given below: A-III, B-IV, C-I, D-II A-II, B-III, C-IV, D-I A-III, B-I, C-IV, D-II A-III, B-IV, C-II, D-I Translocation of carbohydrates in plants usually occurs in the form of? Sucrose Maltose Glucose Starch Cell wall of archaebacteria do not contain? Proteins Peptidoglycans Polysaccharides Glycoproteins The National Genebank Facility to conserve plant genetic resources in India is located at? Ahmedabad (Gujarat) Hyderabad (Telangana) New Delhi (Delhi) Chennai (Tamil Nadu) Conjugation between two bacteria is mediated through? F-plasmid C-plasmid R-plasmid D-plasmid At the minimum, how many years of multi-location testing is required for a conventionally bred genotype to be released as a new variety? 5 years 2 years 4 years 3 years Given below are two statements?Statement I: The process of CTC in tea stands for Crushing, Tearing, and CurlingStatement II: The process of CTC in tea stands for Curling, Tearing, and CrushingIn the light of the above statements, choose the most appropriate answer from the options given below Both Statement I and Statement ll are false Statement l is incorrect but Statement ll is True Both Statement I and Statement ll are true Statement I is correct but Statement ll is false Match List I with List lI List I(Theory)List II(Scientist who proposed)A. Cell theory I. Clarence P OliverB. Chromosomal theory of inheritance II. Schleiden, Schwann, and VirchowC. Divisibility of gene III. Vernon IngramD. One gene-one polypeptide IV. Walter Sutton and Theodor BoveriChoose the correct answer from the options given below A-IV, B-III, C-II, D-I A-II, B-I, C-IV, D-III A-II, B-IV, C-I, D-II A-III, B-II, C-I, D-IV Match ListI with List-II: List IList IIOrganelleFunctionA. Mitochondrnai. Packaging protein, lipid, and phospholipid for transport to other cellsB. Endoplasmic reticulumii. Oxidation of carbohydrate, lipid, and proteinC. LysosomesIII. Digestion of intra-cellular substances and foreign materialD. Golgi complexIV. Provide passage for mRNA from the nucleus to cytoplasmChoose the correct answer from the options given below: A-I, B-II, C-III, D-IV A-II, B-IV, C-III, D-I A-II, B-I, C-III, D-IV A-II, B-IV, C-I, D-III Which one of the following viruses is transmitted by pollen? Tobravirus Papaya ringspot virus Tospovirus Prunus necrotic ringspot virus Cell theory was put forward by? Schleiden & Schwann Calvin & Malvin Leeuwenhoek Singh & Nicolsan Given below are two statements:Statement I: Light reaction takes place in the stromaStatement II: Dark reaction takes place in granaIn light of the above statements, choose the most appropriate answer from the options given below Statement I is incorrect but Statement II is true Both Statement I and Statement II are true Both Statement I and Statement II are false Statement l is correct but Statement II is false With regard to the cultivation of groundnut, which of the following statements are correct?1. Groundnut is a warm-season crop requiring abundant sunshine2. Well-drained sandy loams are most favorable for growing groundnut3. Groundnut is propagated through whole pods, decorticated seeds or from seedlings4. Groundnut is widely grown in coastal and deltaic regions5. Groundnut takes six to nine months to matureChoose the correct answer from the options given below: C, D, E only B, C, D only A, B, C only A, D, E only The gene A-B-D is present in one chromosome in the coupling phase of linkage. One of the double cross-Over gametes has A-b-D gene combination.The gene which was in the middle of the sequence is? Cannot determine D B A Identify the correct order of activities followed for testing and release of crop varieties?1. Multi-location testing2. Station trial3. Variety identification4. Release and notification5. seed multiplication and distributionChoose the correct answer from the options given below: C, D, A, E, B B, A, C, D, E B, C, D, E, A A, B, C, E, D Which one of the following species has an inflorescence of terminal digitate spikes of spikelets? Panicum sumatrense Panicum miliaceum Eleusine coracana Setaria italica Given below are two statements:Statement I: Witches broom symptoms are caused by phytoplasmasStatement II: Nutrient deficiency also causes witches broom in crop plantsIn light of the above statements, choose the most appropriate answer from the options given below: Statement I is incorrect but Statement II is true Both Statement I and Statement II are false Both Statement I and Statement II are true Statement I is correct but Statement II is false The tag for Breeders Seed is issued by? Concerned Breeder of the variety Independent organization operated under the state government State Seed Certification Agency Central Seed Certification Agency Which one of the following bacterial pathogenic genus is classified under Gram-negative aerobic and microaerophilic rods? Acidovorax Erwinia Pantoea Enterobacter Given below are two statements:Statement I: Potato is essentially a crop of cool moist regions and grows best in a climate where cool nights alternate with warm days during the period of tuber formationStatement II: Irrigation or rainfall at or just before the initiation of tuber the formation will result in a decrease in the number of tuber setsIn the light of the above statements, choose the most appropriate answer from the options given below Statement I is incorrect but Statement II is True Both Statement I and Statement II are true Both Statement I and Statement II are false Statement I is correct but Statement II is false Which of the following listed items does not come under the purview of the National Plant Protection Organization (NPPO) under the International Plant Protection Convention (IPPC)?1. Surveillance and inspection2. Controlling pests (for example administering treatments, preventing spread, disinfection or disinfestation)3. Conduction of pest risk analysis4. Conservation and regeneration of plant genetic resources5. Multiplication of plant genetic resourcesChoose the correct answer from the options given below A, E only A, B only D, E only B, C only Given below are two statements?Statement I: Cleistogamy and chasmogamy favor self-fertilizationStatement II: Male sterility and self-incompatibility do not favor cross-fertilizationIn light of the above statements, choose the most appropriate answer from the options are given below: Statement I is incorrect but Statement II is true Both Statement I and Statement II are false Statement I is correct but Statement II is false Both Statement I and Statement II are true Naked asci can be observed in which ascomycete fungus? Taphrina Uncinula Erysiphe Claviceps End product of Glycolysis is? Acetyl CoA Glucose-1-Phosphate Fructose-1-Phosphate Pyruvic acid The first product to be tagged with GI in India is? Assam Tea Organic tea Nilgiri Tea Darjeeling tea In which of the following seed storage conditions, the longevity of the seeds would be maximum? Dehumidified with low temperature (5-8 °C) storage Moisture proof storage Dehumidified storage only Normal ambient storage Match List I with List IIList IList IIGenotypePopulationA. Inbred linesI. Homozygous and heterogenousB. 3-way cross hybridII.Homozygous and homogeneousC. Single cross hybridIII. Heterozygous and heterogenousD. MultilineIV. Heterozygous and homogenousChoose the correct answer from the options given below: A-II, B-III, C-I, D- IV A-II, B-IV, C-II, D-I A-I, B-III, C-IV, D-I A-I, B-IV, C-III, D-II Given below are two statements?Statement I: Nitrogenase enzyme is sensitive to molecular oxygenStatement II: Bacteria of genus Azospirillum fix nitrogen under microaerophilic conditionsIn the light of the above statements, choose the most appropriate answer from the options are given below Both Statement I and Statement II are false Statement I is correct but Statement II is false Statement II is correct but Statement I is false Both Statement I and Statement II are true Irradiation by UV light causes? Dimerization of either purines or pyrimidines Dimerization of both purines and pyrimidines Dimerization of purines Dimerization of pyrimidines The hormone needed for cell division during germination of seed is? Gibberelin Ethylin Abscisic acid Cytokinin The minimum standard of seed germination (%) for seed certification in maize is? 95 80 85 90 The genome of Triticale is designated as? AABBDD AABBRR AABBCC AABB Which of the statements below do NOT stand true about the ‘Convention on Biological Diversity (CBD)?1. CBD deals with all biological resources2. One of the objectives of CBD is the conservation and sustainable use of the component of biodiversity3. The CBD affirms the sovereign rights of the nation over its genetic resources4. CBD is an instrument for harmonizing phytosanitary measures in international trade5. CBD provides a model for securing protection for plant breeder rights for plant varieties D. E only C. D only A, B only B, C only Which of the following statements are correct with respect to fibers or fiber-yielding plants?1. Vegetable fibres are mainly composed of cellulose2. Vegetable fibres are mainly composed of proteins3. Fibre durability is conditioned by the diameter of the fiber or fibrous aggregate4. The flexible wall of cotton fiber contains no ligninChoose the correct answer from the options given below: A, C, D only A, B, D only A, B, C only B, C, D only Maximum assimilation of nitrate takes place in which part of the plant? Root Fruit Leaves Stem The purity standard of certified seeds of carrot is? 95% 70% 97% 98% Toxic shock syndrome, a severe infection characterized by high fever and vomiting is caused by? Enterococcus foecalis Staphylococcus aureus Bacillus anthracis Streptococcus pyogenes The scientific name of Oil palm is? Ricinus communis Sesamum indicum Elaeis guineensis Olea europea Which of the following is NOT a non-sense codon? UAG UGA UAA AUG Match List I with List II List IList IIA. Chitin I. ArchaebacteriaB. Pseudomurein II. Gram-positive bacteriaC. O-antigens III. Fungal cell wallD. Teichoic acid IV.Gram-negative bacteriaChoose the correct answer from the options given below: A (I), B (III), C (II), D (IV) A (III), B (I), C (IV), D (II) A (I), B (III), C (IV), D (I) A (III), B (I), (II), D (IV) Which of the following statements is NOT true for Koch’s postulates?1. A specific organism can always be found in association with a given disease2. The organism can be isolated from a diseased animal and grown in pure culture in the laboratory3. The pure culture will produce the disease when inoculated into a resistant animal4. The pure culture will not produce the disease when inoculated into a susceptible animal5. It is possible to recover the organism in pure culture from the experimentally infected animalChoose the correct answer from the options given below: C, D and E only C and D only C only C and E only Certain plant pathogens do not live at the site of the symptom or symptomatic plant niche?1. They only transfer virulent factors to host2. Plant attracts the virulence factors by its chemical signals3. This kind of pathogen survive in the rhizosphere of the infected plant4. Virulence factors can be cultured on media5. Infected plant can be recovered with time B, C, E Only C, D, E Only A,C, D Only A, B, C Only Which one of the following is NOT an introduced variety of wheat crop? Latisail Federation Marquis Turkey The degree of compost maturity can be assessed by? Both, seed germination test and infrared technique Seed germination test only Moisture content only Infrared technique only Vertical resistance is useful in crop improvement program for importing resistance?1. Because of their monogenic nature2. Because of their polygenic nature3. The pathogen can break their resistance by evolving new race4. The pathogen cannot break this resistance5. Vertical resistance will work against biotrophic pathogensChoose the correct answer from the options given below: C, D, E Only Answer Not Found (Comment Right Answer) A, B, C Only B, C, D Only A,C, E Only When two self-incompatible but cross-compatible parental lines are inter-planted, the seeds harvested from both the self-incompatible lines will be? Inbred seeds Hybrid seeds Selfed seeds Composite seeds The seed dormancy can be detected by? Purity test Germination test Tetrazolium test Vigor test Match List I with List II?List IList IIClass of seedColor of tag)A. Breeders seedI. No tags are usedB. Nucleus seedII. Golden brownC. Certified seedIII. Azure blueD. Foundation seedIV. White A-IV, B-I, C-II, D-III A-I, B-II, C-III, D-IV A-III, B-I, C-II, D-IV A-II, B-I, C-III, D-IV Given below are two statements?Statement I: Spatial and temporal transmission of plant pathogens are in general guided by asexual and sexual sporesStatement II: Bacterial pathogens produce asexual cellsIn the light of the above statements, choose the most appropriate answer from the options given below Both Statement I and Statement II are true Statement I is correct but Statement II is false Statement I is incorrect but Statement II is true Both Statement I and Statement II are false Arrange these Conventions and Treaties in ascending order of year they entered into force?A. World Trade Organization-Trade Related Aspect of Intellectual Property Rights (WTO-TRIPS)B. Convention on Biological Diversity (CBD)C. Nagoya Protocol on Access and Benefit Sharing (NP)D. Geographical Indication of Goods (Registration and Protection, GI ActE. International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA) A, B, D, E, C E, C, B, A, D B, D, A, E, C D, B, A, E, C Zein, a special kind of protein is obtained from? Guar (Cyamopsis tetragonoloba) Ramie (Boehmeria nivea) Maize (Zea mays) Grass pea (Lathyrus sativus) Given below are two statements:Statement I: Leaf curl is one of the symptoms of viral diseaseStatement II: Fungi can also cause leaf curl symptomsIn light of the above statements, choose the most appropriate answer from the options given below: Statement I is correct but Statement II is false Statement I is incorrect but Statement II is true Both Statement I and Statement II are false Both Statement I and Statement II are true An organism has a haploid chromosome number 7. The probability that a sperm produced by it will contain all the 7 chromosomes whose centromeres were derived from the maternal homologue is? (1/2)5 (1/2)2 (1/2)3 (1/2)7 The yield of inbred A is 40 a/ha, inbred B is 20 q/ha, check hybrid yield is 45 a/ha and the yield of hybrid (A x B) is 50 q/ha. The standard heterosis (%) is? 66.6% 25% 11.1% 50% Given below are two statements:Statement I: Xanthomonas causes disease on fiber plant partsStatement II: Xanthomonas can cause vascular wilt in riceIn light of the above statements, choose the most appropriate answer from the options given below: Statement I is correct but Statement II is false Both Statement I and Statement II are true Statement I is incorrect but Statement II is true Both Statement I and Statement II are false How many linkage groups are present in maize (Zea mays L)? 10 13 12 20 Given below are two statements?Statement I: Higher the degree of cross-pollination in crops, the more will be the isolation distance requirementStatement ll: self-pollinated crops need more isolation distance like cross-pollinated cropsIn light of the above statements, choose the most appropriate answer from the options are given below Both Statement I and Statement II are true Statement I is incorrect but Statement I is true Both Statement I and Statement II are false Statement I is correct but Statement II is false Who among the following scientist is considered as Father of Green Revolution in India’? Dr MS Swaminathan Dr B P Pal Dr Gurudev S Khush Dr RS Paroda Your score isThe average score is 0% 0% Restart Test