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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Which of the following is most effective chemical mutageneA. MethaneB. GuanineC. Carbon tetrasulphideD. Caffeine |
| Answer» Correct Answer - C | |
| 202. |
IARI is situated atA. LucknowB. New DelhiC. KolkataD. Coimbatore |
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Answer» Correct Answer - B IARI is situated at New delhi. |
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| 203. |
Four inbreed lines of maize are crossed. The cross isA. Tetraploid crossB. Double crossC. Dihybrid crossD. Tetrahybrid cross |
| Answer» Correct Answer - B | |
| 204. |
The semi dwarf wheat which was instrumental in increasing wheat production was production was developed by:A. Alexander von humboldtB. Paul EhrlichC. Dr. KureinD. Norman e. borlaug |
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Answer» Correct Answer - D Semidwarf wheat which was intrumental in increasing wheat production was developed by norman E. Borlaug. |
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| 205. |
The origin of sunflower is believed to be inA. Peruvian AndesB. Mexico and Central AmericaC. BrazilD. USA |
| Answer» Correct Answer - D | |
| 206. |
South-east Asia is thought to be the centre of origin ofA. Rice, sugarcane, mango and bananaB. Rice and sugarcane and mangoC. Rice and sugercaneD. None of these |
| Answer» Correct Answer - A | |
| 207. |
Maize evolved inA. USAB. BrazilC. Mexico and Central AmericaD. Peruvian Andes |
| Answer» Correct Answer - C | |
| 208. |
In 2000, maize hybrids that had twice the amount of the amino acids_______and_______, compared to existing maize hybrids were developed. |
| Answer» Correct Answer - lysine , tryptophan | |
| 209. |
Which variety is resistance to the curl blight black rot diseases ?A. Pusa sawaniB. Pusa swarnimC. Pusa subhraD. Himgiri |
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Answer» Correct Answer - C Pusa subhra is resistance to the curl blight black rot and black rot. |
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| 210. |
Assertion : Before breeding is undertaken, it is important to know about the causative organism and the mode of transmission . Reason : Black rot of crucifers is caused by fungi.A. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true but reason is not the correct explanation of the assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
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Answer» Correct Answer - C Before breeding is undertaken, it is important to know about the causative organism and the mode of transmission. Black rot of crucifers is caused by bacteria. |
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| 211. |
Which is a breed of cattle ?A. AryshireB. GhagusC. KadaknathD. Scampi |
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Answer» Correct Answer - A Aryshire is a breed of cattle. |
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| 212. |
Which of the following is an example of mutation breeding ?A. Pusa Swarnim, resistant to white rustB. Mung bean, resistant to yellow mosaic virusC. Pusa Sadabahar, resistant to chilli mosaic virusD. Pusa Gaurav, resistant to aphids |
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Answer» Correct Answer - B The process of mutation breeding involves inducing mutations artificially through use of chemicals or radiations (like gamma radiations) and selecting plants that have the desirable character as a source in breeding. In mung bean, resistance to yellow mosaic virus and powdery mildew were induced by mutations. |
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| 213. |
Apiculture is associated with groups of plantsA. Grapes, Maize , potatoB. Sugarcane, Paddy, BananaC. Guava, Sunflower, StrawberryD. Pineapple, Sugarcane, Strawbery |
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Answer» Correct Answer - C Apiculture is associated with groups of plants guava, sunflower and strawberry. |
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| 214. |
Which of the following is a consequence of hidden hunger ?A. Reduce life spanB. Reduce mental abilitiesC. Increased the risk of diseaseD. All of the above |
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Answer» Correct Answer - D 3 billion people (300 crore) people suffer from hidden hunger or micronutrient, protein and vitamin deficiencies or hidden hunger because they cannot afford to buy enough fruits, vegetables, legumes, fishes and meat. Diets lacking essential micronutrients particularly Fe, I,Zn and Vit-A increase the risk for disease, reduce lifespan and reduce mental abilities. |
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| 215. |
Hairy leaves of many plants are associated withA. resistant to insect pestsB. resistance to virusesC. resistance to fungiD. resistance to bacteria. |
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Answer» Correct Answer - A Insect resistance in host crop plants is due to morphological, biochemical or physiological characters. Hairy leves of many plants are associated with resistance to insect pests. For example, resistance to jassids in cotton and cereal leaf beetle in wheat. |
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| 216. |
Hairy leaves in cotton providesA. Resistance to cereal leaf beetleB. Resistance to bollowromsC. Resistance to jassidsD. Resistance to sawfly |
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Answer» Correct Answer - C Hairy leaves in several plants are associated with resistance to insect pests e.g. (i) Resistance to jassids in cotton. (ii ) Cereal leaf beetle in wheat. |
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| 217. |
Classical plant breeding involvesA. Hybridisation followed by natural selectionB. Hybridisation of followed by artifical selectionC. Artificial selection and deomesticationD. Mutation breeding |
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Answer» Correct Answer - B Classical plant breeding involves hybridisation followed by artificial selection. |
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| 218. |
In________we deals with the processes and systems that increases yield and improve quality of milk. |
| Answer» Correct Answer - Dairy farm management | |
| 219. |
________is primarily dependent on the quality of breeds in the farm. |
| Answer» Correct Answer - Milk yield | |
| 220. |
Why is bagging of the emasculated flowers essential during hubridization experiments ? |
| Answer» Bagging of emasculated flowers is essential to prevent contamination of their stigmas with unwanted pollen. | |
| 221. |
Somaclonal variation appears in plantsA. organisms produced through somatic hybridizationB. plants growing in highly polluted conditionsC. apomictic plantsD. tissue culture raised plants |
| Answer» Correct Answer - D | |
| 222. |
Halikar, a draught breed of cattle occurs inA. A.PB. M.PC. KarnatakaD. Gujrat. |
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Answer» Correct Answer - C Hallikar, a draughter breed of cattle occurs in Karnatka |
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| 223. |
In which of the following options, the different breeds are not correctly placed ?A. `{:("Breeds of buffalo","Breeds of cattle",),("Murrah","Hallikar",):}`B. `{:("Breeds of buffalo","Breeds of cattle",),("Bhadawari","Kankrej"",):}`C. `{:("Breeds of buffalo","Breeds of cattle",),("Mehsana","Tharparkar"",):}`D. `{:("Breeds of buffalo","Breeds of cattle",),("Chegu","Jaffarabadi"",):}` |
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Answer» Correct Answer - D Chegu is a breed of goat. Jaffarabadi is a breed of buffalo. |
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| 224. |
Which of the following is a draught breed of Indian cattle ?A. MalviB. GirC. SahiwalD. Deoni |
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Answer» Correct Answer - A Malvi is a draught breed of indian cattle. The bullocks of draught breed are good for working but cows are poor milk producers. |
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| 225. |
Which one of the following is a breed of cattle ?A. AyrshireB. GhagusC. KadaknathD. Scampi |
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Answer» Correct Answer - A Ayrshire is an exotic breed of cattle from Scotland. |
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| 226. |
Holstein-Friesian, Brown Swiss and Jersey are all well knownA. exotic breeds of cowB. exotic breeds of goatC. exotic breeds of poultryD. animal husbandry scientists. |
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Answer» Correct Answer - A Holstein-Friesian from Holland, Brown Swiss from Switzerland and Jersey from Island of Jersey in English channel are exotic breeds of cattle. |
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| 227. |
Artifical hybridisation is the transfer of pollen grains to the stigma fromA. A flower with desired traitB. The same flowerC. Any flowerD. None of the above |
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Answer» Correct Answer - A Articicial hybridisation is the transfer of pollen grains to the stigma from a flower with desired trait. |
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| 228. |
Single cell proteins areA. MicroorganismsB. EnzymesC. AntibioticsD. Toxins |
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Answer» Correct Answer - A Single cell proteins are microorganisms. |
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| 229. |
"Gill rot" deases of fish is due toA. Aeromonas speciesB. Branchiomyces sanguinisC. Bacillus polymyxaD. Bacillus subtilis |
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Answer» Correct Answer - B "Gill rot" disease of fish is due to Branchiomyces sanguinis. |
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| 230. |
Assertion : More than 25 per cent of human population is suffering from hunger and malnutrition. Reason : It was learnt by scientists, during 1960 , that whole plants could be regenerated form explants.A. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true but reason is not the correct explanation of the assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
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Answer» Correct Answer - C More than 25 per cent of human population is suffering from hunger and malnutrition. It was learnt by scientists, during 1950s, that whole plants could be regenerated from explants. |
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| 231. |
Inherent capacity of a cell to regenerate the whole organism is calledA. TotipotencyB. OntogenyC. PhylogeneyD. Proliferation |
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Answer» Correct Answer - A Inherent capacity of a cell to regenerate whole organism in called totiopotency. |
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| 232. |
Which technique is used for the herd improvement ?A. MOETB. Artificial inseminationC. interspecific hybridisationD. Controlled breeding experiments |
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Answer» Correct Answer - A MOET technique is used for the herd improvement |
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| 233. |
Which of the following statements does not provide an explanation for hybrid vigour ?A. Under certain circumstances, heterozygotes are superior to either possible homozygotes.B. Disease-causing, homozygous recessive phenotypes from either parent are masked in the hybrids.C. Offspring from a hybrid cross usually possess the best of two desirable parents.D. Inherently, hybrids have no deleterious mutations. |
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Answer» Correct Answer - D Hybrid vigour is increase in the desirable traits in the hybrid individual obtained from crossbreeding. The increase in heterozygosity is underlying cause of hybrid vigour. Inherently, hybrids do have deleterious mutations. |
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| 234. |
A group of animals which are related by descent and share many similarities are referred to asA. SpeciesB. VarietyC. BreedD. Race |
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Answer» Correct Answer - C A group of animals which are related by descent and share many similarities are referred to as breed. |
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| 235. |
A cybrid is hybrid carryingA. Genomes and cytoplams of two different plantsB. Cytoplasms of two different plantsC. Cytoplasms of two different plants but genome of one plantD. Genomes of two different plants |
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Answer» Correct Answer - C A cybrid is hybrid carrying cytoplasms of two different plants but genome of one plant. |
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| 236. |
Blue revolution is related toA. ApicultureB. Fish productionC. Milk productionD. Crop rotation |
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Answer» Correct Answer - B Blue revolution is related to increased fish production. |
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| 237. |
Slaughter house is known asA. AbattoirB. ApiaryC. AviaryD. Arboretum |
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Answer» Correct Answer - A Slaughter house is known as abattoir. |
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| 238. |
To increases lactation/milk yield, cow is givenA. SorbitolB. StibestrolC. ProlactinD. Gonadotrophin |
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Answer» Correct Answer - B To increase lactation/milk yield, cow is given stilbesterol. |
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| 239. |
The self - pollinated progeny of a . . . . . . . plant constitute a pure line. |
| Answer» Correct Answer - homozygous | |
| 240. |
Production of superior `F_1` hybrids is calledA. EmasculationB. DomesticationC. InbreedingD. Heterosis |
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Answer» Correct Answer - D Production of superior `F_1` hybrids is called heterosis. |
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| 241. |
The most extreme form of . . . . . . . . . . is self pollination or selfing. |
| Answer» Correct Answer - inbreeding | |
| 242. |
The hybrids are generally found to be superior to their parents , it is because ofA. HomozygosityB. Hybrid vigourC. Parents are generally weakD. None of these |
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Answer» Correct Answer - B Breeding usually takes place between members of different varieties or strains, and in certain plants of closely related species.The progeny is known as hybrid and have phenotypes showing characteristics which are superior to either of the parents stock.This phenomenon is known as hybrid vigour or heterosis. |
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| 243. |
Super hybrids are obtained when genetically . . . . . . . . . . . .parents are used in the . . . . . . . . . .. . |
| Answer» Correct Answer - different, cross | |
| 244. |
Write the importance of MOET. |
| Answer» The technique is used to increase the successful arte production of hybirds in short duration of time. | |
| 245. |
Scientific name of yeast is . . . . . . . . . |
| Answer» Saccharomyces cerevisiae. | |
| 246. |
Which of the following can be used for cultivation of SCP (like spirulina) ?A. StrawB. SewageC. Waste water from potato processing plantsD. All of the above |
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Answer» Correct Answer - D Microbes like spirulina can be grown easily on materials, like waste from potato processing plants (containing starch) , straw, molasses , animal manure and even sewage to prdouce large quantities of food rich in protein, fat, carbohydrate , vitamins and minerals. Incidentally such utilisation also reduce environmental pollution. |
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| 247. |
SINGLE CELL PROTEIN (SCP) |
| Answer» Single cell protein. | |
| 248. |
The use of colchicines is involved in production ofA. Somaclonal variationB. HaploidsC. PolyploidsD. Hybrids |
| Answer» Correct Answer - C | |
| 249. |
Monosomy and Trisomy can be represnted asA. 2n+1, 2n+3B. 2n-1, 2n-2C. 2n,2n+1D. 2n-1, 2n+1 |
| Answer» Correct Answer - D | |
| 250. |
The tumor inducing capacity of Agrobacterium tumefaciens is located in large extra-chromosomal plasmids calledA. Ri plasmidB. Lambda phageC. pBR 322D. Ti plasmid |
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Answer» Correct Answer - D Agrobacterium tumefaciens is a gram-negative soil bacterium that infects a wide range of plants and causes tumorous growths (galls), especially at the root/stem junction (crown gall). |
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