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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.
| 101. |
Pebrine disease in silkworm is caused byA. LeishmaniaB. NosemaC. TrypanosomaD. Vorticella |
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Answer» Correct Answer - B Pebrine disease in silkworm is caused by Nosema bombyces. |
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| 102. |
Name some plant disease caused by fungi |
| Answer» Correct Answer - Brown rust of wheat, red rot of sugarcane, late blight of potato | |
| 103. |
Name some plant diseases caused by bacteria |
| Answer» Correct Answer - Black rot of crucifers | |
| 104. |
Name some plant diseases caused by viruses |
| Answer» Correct Answer - Tobacco mosaic, Turnip mosaic | |
| 105. |
The conventional method of breeding for disease resistance isA. selectionB. hybridisationC. mutationD. both A and B |
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Answer» Correct Answer - D The conventional method of breeding for disease resistance is selection and hybridisation. |
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| 106. |
The conventional method of breeding for disease resistance is that of______and______ |
| Answer» Correct Answer - Hybridization, selection | |
| 107. |
Complete the following table |
| Answer» Correct Answer - `|{:((a),"Himgiri"),((b),"Brassica"),((c),"White rust"),((d),"Black rot and Curl blight black rot"),((e),"Pusa komal"),((f),"Chilli mosaic virus ,"),(,"Tobacco mosaic"),(,"virus, Leaf curl"):}|` | |
| 108. |
_________is the process by which genetic variations are created through changes in the base sequence within genes resulting in the creation of a new character of trait not found in parental type. |
| Answer» Correct Answer - Mutation | |
| 109. |
Cross between which animals lead to the production of mule? |
| Answer» Interspecific hybridization (A cross between a male donkey and a female horse). | |
| 110. |
The substance used in the tissue culture medium for induction of shoots in callus isA. ABAB. `GA_(3)`C. LAAD. Kinetic |
| Answer» Correct Answer - D | |
| 111. |
A mule is produced by the interspecific hybridisation between A. Hisardale and merino ramsB. male donkey and mareC. female donkey and a male horseD. Merino ram and Bikaneri ewe. |
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Answer» Correct Answer - B A mule is produced by the interspecific hybridisation between male donkey and a female horse (mare). In interspecific hybridisation, male and female animals of two different related species are mated. In some cases, the progeny may combine desirable features of both the parents, and may be of considerable economic value. |
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| 112. |
Consider the following three statements and select the correct option starting which ones are tube (T) and which ones are false (F). (i) Hybridisation is crossing of two or more types pf plants for bringing their traits together in progeny. (ii) Semi-dwarf rice varieties were derived from IR-8 and Taichung Native -1. (iii) Hybrid breeding have led to the development of several high yeilding resistant to water stress.A. `{:((i),(ii),(iii),),(F,T,T,):}`B. `{:((i),(ii),(iii),),(T,T,F,):}`C. `{:((i),(ii),(iii),),(F,T,F,):}`D. `{:((i),(ii),(iii),),(T,T,T,):}` |
| Answer» Correct Answer - D | |
| 113. |
Match the column and select the correct option A. i-I,ii-II,iii-III,iv-IVB. i-I,ii-III,iii-II,iv-VC. i-II,ii-III,iii-IV,iv-ID. i-I,ii-IV,iii-II,iv-III |
| Answer» Correct Answer - B | |
| 114. |
Match column I (crop) with column II (corresponding disease resistant variety) and select the correct option from the given codes. `{:(,"Column I",,"Column II"),(A.,"Cowpea",(i),"Himgiri"),(B.,"Wheat",(ii),"Pusa komal"),(C.,"Chilli",(iii),"Pusa Sadabahar"),(D.,"Brassica",(iv),"Pusa Swarnima"):}`A. A-(iv), B-(ii), C-(iii), D-(i)B. A-(ii), B-(i), C-(iii), D-(iv)C. A-(ii), B-(iv), C-(i), D-(iii)D. A-(i), B-(iii), C-(iv), D-(ii) |
| Answer» Correct Answer - B | |
| 115. |
What approaches have to be applied to achieve improvement in quality and prdouctivity of animals ?A. conventional practicesB. Artificial inseminationC. MOETD. all of the above |
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Answer» Correct Answer - D Conventional practices, artificial insemination and MOET approaches have to be applied to achieve improvement in quality and productivity of animals. |
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| 116. |
Match the terms given in column I with their descriptions given in column II and select the correct option from the codes given below. `{:(,"Column-I",,"Column-II"),((A),"Out-crossing",(i),"Mating of closely related individuals within the same breed"),((B),"Interspecific hybridisation",(ii),"Mating of animals of same breed but having no common ancestors on either side of their pedigree for 4-6 generations"),((C),"Cross-breeding",(iii),"Mating of animals of two different species"),((D),"Inbreeding",(iv),"Mating of animals belonging to different breeds"):}`A. A-(ii), B-(iii), C-(iv), D-(i)B. A-(iii), B-(ii), C-(iv), D-(i)C. A-(iv), B-(ii), C-(iv), D-(i)D. A-(ii), B-(iv), C-(iii), D-(i) |
| Answer» Correct Answer - A | |
| 117. |
Given below are the three statements each with one or two blanks. Select the option which correctly fills up of the blank in any two statements. A. Inbreeding helps in accumulation of `ul(i)` and elimination of `ul(ii)`. B. In MOET a cow is administered hormones, with `ul(i)` like activity, to induce follicular maturation and super ovulation. C. Hisaedale is a new breed of sheep developed in Punjab by crossing `ul(i)` and `ul(ii)`.A. A-(i) less desirable genes, (ii) superior genes B-FSHB. A-(i)superior genes, (ii) less desirable genes, (ii) less C-(i) Bikaneri ewes (ii) Marino ramsC. B-(i) LH C-(i) Sahiwal ewes, (ii) Deoni ramsD. B-(i) progesterone C-(i) Kankrej ewes, (ii) Dangi rams |
| Answer» Correct Answer - B | |
| 118. |
MOET stands forA. Multiple Ovulation and Egg Transfer TechnologyB. Multiple Ovary and Embryo Transfer TechnologyC. Multiple Ovulation Embryo Transfer TechnologyD. Method of Egg Transfer Technology. |
| Answer» Correct Answer - C | |
| 119. |
In MOET, at how many cells stage fertilised eggs are recovered from the super ovulated female? |
| Answer» Correct Answer - 8-32 celled stage | |
| 120. |
What is the significance of cross breeding ? |
| Answer» Correct Answer - If allows the desirable qualities of two different breeds to be continued The progeny hybrid animals may themselves be used for commercial production | |
| 121. |
MOET stands forA. Multiple ovulation Egg transfer technologyB. Multiple Ova and Embryo transfer technologyC. Multiple ovulation embryo tracer technologyD. multiple ovulation embryo transfer technology |
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Answer» Correct Answer - D MOET stands for multiple ovulation embryo transfer technology. |
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| 122. |
In which method of animal breeding two different species of male and female animals are mated ?A. Cross breedingB. outbreedingC. out crossingD. interspecific hybridisation |
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Answer» Correct Answer - D Interspecific hybridisation: Crossing between male and female animals of two different related species. In Some cases the properly may combine desirable features of both the parents and may be of considerable economic value e.g., the mule. |
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| 123. |
In this method, male and female animals of two different related species are mated. |
| Answer» Correct Answer - Intersepecific hybridization | |
| 124. |
Biological principles as applied to animal husbandry and food production. Which of the following technique is going to play a pivotal role in further enhancing food production ?A. Tissue culture techniqueB. Embryo transfer techniqueC. Both A and BD. None of the above |
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Answer» Correct Answer - C With ever-increasing population of the world, enhancement of food production is a major necessity. Biological principles as applied to animal husbandry and plant breeding have a major role in our efforts to increases food production. Several new techniques like embryo transfer technology and tissue culture technique play pivotal role in further enhancing food production. |
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| 125. |
Outbreeding is an important strategy of animal husbandry because itA. Is useful in producing purelines of animalsB. Is useful in overcoming inbreeding depressionC. Exposes harmful recessive genes that are eliminated by selectionD. Helps in accumulation of superior genes |
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Answer» Correct Answer - B Outbreeding is an important strategy of animal husbandry because it is useful in overcoming inbreeding depression. |
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| 126. |
Outbreeding is an important strategy of animal husbandry because itA. Exposes harmful recessive genes that are eliminated by selectionB. Helps in accumulation of superior genesC. Is useful in producing purelines of animalsD. In use in overcoming inbreeding depression |
| Answer» Correct Answer - D | |
| 127. |
What is the main reason for low milk production in India ? How can it be improved ? |
| Answer» The main reasons for low milk production in India are insufficient number of improved breeds and the improper freeding of the cattle. Improved breeds should be increased in number by proper management which include fascilities, appropriate, material and labour. Cattle should be fed with proper and balanced feed consisting of appropriate quantities of proteins, carbohydrates, fats vitamins and water. | |
| 128. |
Plant medium used widely in preparation of culture medium is got fromA. Cycas revolutaB. Cocos nuciferaC. Pinus roxburghiiD. Borassus flabellifer |
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Answer» Correct Answer - B Plant medium used widely in preparation of culture medium is got form cocos nucifera. |
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| 129. |
What strategy would you suggest if a person wants to evolve a pure line in an animal ?A. Cross-breedingB. InbreedingC. Out-breedingD. Artifical insemination |
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Answer» Correct Answer - B Inbreeding increases homozygosity and thus, is necessary for evolving a pure line in any animal. |
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| 130. |
What will you do to get your cow crossed artificially by an exotic bull ? |
| Answer» There are insemination centres througout the country collect the semen of superior bulls of exotic or indigenous breeds and store in the frozen from to be used at a later date. We should take our cows to these centres for artificial insemination. | |
| 131. |
What ingradients you suggest to be added in the following specified culture media ? (a) Preparation of a semisolid medium (b) Preparation of a solid medium (c ) A culture medium for graving an explant in vitro. |
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Answer» (a) Gelatic (b) Agar agar (c ) Nutrients like inorganic salts, vitamins, `2-4%` sucrose, amino acid glycine and growth regulators. |
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| 132. |
One of the alternate soruces of protein for animals and human nutrition isA. Single cell proteinB. Non-vegetraian mealC. MushroomsD. Pulses |
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Answer» Correct Answer - A One of the alternate source of protein for animal and human nutrition is single cell protein. |
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| 133. |
An . . . . . . . . . . . . . . is excised from its original location and used for initiating a culture. |
| Answer» Correct Answer - explant | |
| 134. |
Select the correct statement out of (a-d) (a) single celled spirulina can produce large quantities of food rich in protein, minerals and vitamins. (b) Body weight -wise the microorganism methylophilus methylotrophus produces several times more protein that a cow per day. (c) Button mushroom is a rich source of vitamins. (d) A rice variety has been developed which is very rich in calcium.A. c and dB. a, c and dC. b,c and dD. a and b |
| Answer» Correct Answer - D | |
| 135. |
Study statement a-d (about organic farming) and find out the correct ones. (a) Utilises genetically modified crops like Bt cotton (b) Uses only naturally produced input like compost (c) Does not use pesticide and urea (d) Produces vegetables rich in vitamins and mineralsA. a,b and dB. c and d onlyC. a and b onlyD. b and c only |
| Answer» Correct Answer - D | |
| 136. |
Lactobacillus mediated conversion of milk to curd results because of:A. coagulation and partial digestion of milk fatsB. coagulation and partial digestion of milk proteinsC. coagulation of milk proteins and complete digestion of milk fatsD. coagulation of milk fat and complete digestion of milk proteins |
| Answer» Correct Answer - B | |
| 137. |
Name any two source organisms of ager. List any four areas in which agar has wide application. |
| Answer» Agar is obtained from Gelidium and Gracilaria. It is used in making agar plates for growth of micro organisms, for preparation of solid sulture media, DNA finfer printing and in the preparation of jelly. | |
| 138. |
Fill up the blanks in the following paragraph by selecting the correct option. Inbreeding increase `ul(i)`. This inbreeding is necessary if we want to evolve a `ul(ii)` in any animal. Inbreeding exposes harmful `ul(iii)` genes that are eliminated by selection.A. (i) heterozygosity, (ii) puer line, (iii) dominantB. (i) heterozygosity, (ii) breed, (iii) recessiveC. (i) heterozygosity, (ii) puer line, (iii) recessiveD. (i) homozygosity, (ii) breed, (iii) dominant |
| Answer» Correct Answer - C | |
| 139. |
Single cell protein refers toA. A specific protein extracted from pure culture of single type of cellsB. Source of mixed proteins extracted from pure or mixed culture of organisms or cellsC. Proteins extracted from a single cellD. A specific protein extracted from a single cell |
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Answer» Correct Answer - B The term Single Cell Protein (SCP) was coined at Massachusetts institute of technology (MIT) by a group of scientist in 1966. It is dried cell of micro-organisms or microbes (algae, bacteria, actinomycetes and fungi) used as food. SCP is rich in high quality protein and is poor in fats. |
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| 140. |
Which cyanobacterius is commercially used for the production of single cell protein ? |
| Answer» Correct Answer - Spirulina. | |
| 141. |
Bt toxin is obtained fromA. ProkaryotesB. EukaryotesC. Both (a) and (b)D. None of these |
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Answer» Correct Answer - A By toxin gene is obtained from bacteria, Bacillus thuringlensis.This gene has been incorporated into cotton to provide resistance to corn borer. |
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| 142. |
Why is quarantine a must before introduction of a plant species from a different country ? |
| Answer» Plant species are carefully examined for the presence of weeds, insects and disease causing organisms before introduction to reduce the risk of entry of a pathogen in the country. This is called plant quarantine. | |
| 143. |
Micropropagation involvesA. vegetative multiplication of plants by using microoganismsB. vegetative multiplication of plants by using small explantsC. vegetative multiplication of plants by using microsporesD. non-vegetative multiplication of plants by using microspores and megaspores. |
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Answer» Correct Answer - B Micropropagation is the tissue culture technique used for rapid vegetative multiplication of ornamental plants and fruit trees by using small sized explants. Because of minute size of the propagules in the culture, the propagation technique is named as micropropagation. |
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| 144. |
Somatic hybridisation is carried out byA. pollen cultureB. cell cultureC. protoplast fusionD. halpoid culture |
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Answer» Correct Answer - C Somatic hybridisation is carried out by protoplast fuion. |
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| 145. |
Emasculation of male plant having bisexual flowers is carried out in hybridisation program with the help of forceps by removingA. Style before dehiscence of anthersB. Style after dehiscence of anthersC. Anthers before their dehiscenceD. Anthers after their dehiscence |
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Answer» Correct Answer - C Emsculation of female plant having bisexual flowers is carried out in hybridisation programme with the help of forceps by removing anthers before their dehiscence. |
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| 146. |
what is emasculation ? Why and when is it done ? |
| Answer» Emasculation is removal of anthers from a bisexual flower. | |
| 147. |
Which is not true about emasculation of a flower while performing an artificial crossA. It is removal of anthers from flowerB. It is done before anthesisC. It is to avoid self pollinationD. It is done in flowers of plants selected as male parent |
| Answer» Correct Answer - D | |
| 148. |
Homozygous purelines in cattle can be obtained byA. Mating of unrelated individuals of same breed.B. Mating of individuals of different breed.C. mating of individuals of different species.D. mating of related individuals of same breed |
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Answer» Correct Answer - D Homozygous purelines in cattle can be obtained by mating of related individuals of same breed. |
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| 149. |
Homozygous purelines in cattle can be obtained byA. mating of unrelated individuals of same breedB. mating of individuals of different breedC. mating of individuals of different speciesD. mating of related individuals of same breed |
| Answer» Correct Answer - D | |
| 150. |
The technique of obtaining large number of plantlets by tissue culture method is called Or To meet the demands of the society, in vitro production of a large number of plantlets in a short duration is practised in floriculture and hoticulture industry today.This is called ....... Or A novel technique devised to produce vast quantities of strong and healthy plants by rapid vegetative multiplication under controlled conditionsA. MicropropagationB. MacropropagationC. Plantlet cultureD. Organ culture |
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Answer» Correct Answer - A Micropropagation, means rapid vegetative multiplication of valuably plant material for agriculture, horticulture and forestry. Propagation through tissue culture is called micropropagation. |
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