InterviewSolution
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InterviewSolution
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.
| 1. |
Lysine and tryptophan areA. proteinsB. non- essential amino acidsC. Essential amino acidsD. aromatic acids |
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Answer» Correct Answer - C Lysine and tryptophan are essential amino acids. |
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| 2. |
The agriculture sector of India employs aboutA. 50% of the populationB. 70 % of the populationC. 30% of the populationD. 60% of the population |
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Answer» Correct Answer - D india is mainly an agricultural country ,Agriculture employs nearly 60% of the population . |
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| 3. |
what are the duties of a veterinary doctor in mangement of a pultry farm ? |
| Answer» A veternary doctor has to proper and safe farm conditions to keep the animals disease - free and treat appropriately if diseased . | |
| 4. |
A farmer was facing problem of low yield from farm ,He was advised to keep a beehive in the vicnity . Why ? How the beehive help in enhancing yield? |
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Answer» Bee keeping or apiculture is an important enterprise of agriculture concerned with the maintenace of hives of honeybees for the commercial producation of honey and wax.Bee the keeping is a low invesment , less problematic and hioghly profitable cottage industry . the beehives when kept in the fileds of sunflower ,Brassica apple and pear , increase the poliination efficency of flowering plants and impove the yieds. |
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| 5. |
A person who allergic to pulses was advised to take a capsule of spirulina daily . Give the Reasons for the advise. |
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Answer» the person with allergies to advised to takes spirulina daily due to the following reasons (i) it could be a substitute for protein rich pulses. (ii) Spiruline is rich in beta - carotene and anti -oxidants besides all essential amino acids that help in imroving the allerggic symptoms appeared due to consumption of pulses. |
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| 6. |
Give few examples of bofortified crops . What benefits do they offer to the society? |
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Answer» Maize , wheat , rice , battua , spinach , pulses have biofortified varieties hybirds have twice the amount of amino acids , fortified wheat variety has high protein content , fortitfied rice has high quantity iron . Consumption of such biofortitfied foods will nutritive value of our common foods and will vastly improve public health. Instead of consuming different food iterms for obtaining different nutrients if 2 or 3 nutrients can be incorporated into a single cop , it would offer enomous benefits to human beings and may even help to overcome several nutrient defcient offer enoromous benfits to human being and may even help to overcome several nutrient deficiency disciency disorders latent in our conutry. |
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| 7. |
You are botanist working in the area of plant breeding .Describle the various steps that you will undertake to release a new variety. |
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Answer» Plant breeding programmes are carried out in a systematic way world -in government institutions and commercial companies. the main steps in breeding a new genetic of a crop are (i) Collection of varibillity Genetic is the root of any breeding programmme .in many crop pre-existing genetic variability is avaiable from wild relatives of the crop . Collection and pressrvation of all the different wild varieties , species and relatives of the cultivated species (followed by their evaluation for their characterristics ) is pre- requisite for effective exploittation of natural genes available in the popukations. the entire collection (of plants/seeds ) having all the divese alleles for the genes in a given crop is called germplasm collection . (ii) Evaluation and Selection of parents the germplasm is evaluated so as to identify plants with desirable of hybridisation . purelines purelines are created wherever desirable and possible . (iii) Cross hybridisation Among the selected parents the desired characters have very often to be combined from two different plants (parents ) e.g., high protein quality of one parent may need to be combined with disease resistance from another parent . this is possible by cross hybridising in one plant . this is a very time - consuming and tedious process since the pollen grains from the desirable plant chosen as male pareaanat have to be collected and placed on the stigma of the flowers as female parent. Also it is not necessary that the hybrids do comine the desiable characters , usually only one in few hundred to a thousand crosses shows the desiable combination . (iv) Selection and testing of superior Recombinants this step consists of selecting among the proheny of the hybrids those plants that have the breeding objective and requires careful scientic evauation of the progeny . This step yields plants that are superior to both of the parents (very often more than one superior progeny plant may become avilable ) these are self -pollinated for several generations till they reach a state of uniformity (homozygosity ) so that the characters will not segregate in the progeny. (v) Testing Release and commercilalisation of new cultivars the newly selected lines area evaluated for their yield and other agronomic traits of quality , disease resistance etc. this evaluated is done by growing these in the research fields and management all the agroclimatic zones when the crop is usually grown . the material is evaluated in comarison to the best available local crop After evaluation the varaitey can be relased for the the farmers . |
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| 8. |
what is the difference between a breed and a species ? Give an example for each category. |
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Answer» A breed is a specfic group of animals or plants having homogenous appearance, behavour and other characteristiscs that distingusih if from other animals or plants of the same species ,e.g., Afghan shepherd,American bulldog are breeds of dog. Species is one of the basic untis of biological classification and a taxononic rank , it can be defined as the largest group of organisms capable of interbreeding and producing fertille offspring e.g., loin , cow , dog are species. |
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| 9. |
Give me a living cell of any plant and I will give you a thousand plants of the same type" , Is this only a slogan or is it scientifically possibel ? |
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Answer» IT is scitifically possible to gwow thousand plants from a living cell of any plant and this process is called micropropagation , the property of plants cells that helped them to grow into a new plant is totipotency Micropagation is the use of plant cell culture to regenate alrge number of plants ,this results in geneticalyy identical plants and is also called clonal propagation . Hence the desirable charactoers are kept constant for many generations Micropropagation is widely used in forestry and in flouculyure plants can be obtained throughout the year under controlled conditions. |
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| 10. |
what are the physical barriers of a cell in the protoplast fusion experiment?How are these barriers overcome ? |
| Answer» Cell wall is the most important physical physical barrier protoplast fusion experiments , this can be overcome by treatment with enzymes like cellulase and pectinase which have the abilty to digest the cell wall and liberate the naked protoplast surrounded only be the cell membrane . | |
| 11. |
An explant isA. Dead plantB. part of the plantC. part of the plant used in tissue cultureD. part of the plant that expresses a specfic gene |
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Answer» Correct Answer - C Any part of a plant taken out and grown in a a test tube under sterile conditions in a special nutrient media is called an explant ,A whole plant can be genetaled from an explant. |
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| 12. |
Given below are a few statements regarding somatic hybridisation. Choose the correct statements. (i) Protoplasts of different cells of the same plant are fused. (ii) Protoplasts from cells of different species can fused. (iii) Treatment of cell with cellulase and pectinase mandatory. (iv) The hybrid protoplast contains characters of only one parential protoplast.A. I and IIB. I and IIC. I and IVD. IV and III |
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Answer» Correct Answer - D the process of producing somatic hybirds involves the following steps I. Single cells from selected plants are isolated . II. The cell walls of cells are diagested by enzymes like pectinase and cellulase to expose the maked protoplasts. III. Naked protplasts surrounded only by plasma membranes are isoated IV. the isoated protoplasts are FUsed to obyain hybird proplasts under sterile conditions in special nutrient media. V. the hybird protoplasts are cultured in a sitable media to form new plant.The hybird protoplast contains characters of of both paraental protoplasts. |
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| 13. |
Differentiate between piscilture and aquaculture . |
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Answer» Fish farming in isolated water bodies is called pisciculture . Similarly , when culting of aquatic plants and animals is done in freshwater bodies it is called aquaculture. |
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| 14. |
Give two important contribution of DR. MS Swaminathan . |
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Answer» Contributions of Dr. MS Swaminathan are as follows (i) introduction of short , high yielding varieties of wheat in india (ii) Development of short duration , highy yielding varieties of rice . |
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| 15. |
Several South Indian states raise 2-3 crops of rice annually.The agronomic feature that makes this possible is because ofA. Shorter rice plantB. better irrigation facilitiesC. early yielding rice varietyD. Disease resstant rice variety |
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Answer» Correct Answer - C Several South indian states raise 2-3 crops of rice annually the agronmic feature that makes this possible is early yielding rice these varieties are a group of croup created intertionally during the green revolution to increase gglobal prouction . |
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| 16. |
In virus-infected plants the meristematic tissues in both apical and axillary buds are free of virus becauseA. the dividing calls are virus resistantB. Meristerms have antiviral compoundsC. The cell division of meristems are faster than the rate of viral multiplcationD. Viruses cannot multiply within meristerm cell (s) |
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Answer» Correct Answer - C in virus infected plants the meristematic tissues in both apical and axillary buds are free of virus because the multiplcation of merstematic cells faster than replication of viruses. The main reason behindd it is the gene silencing Nether diviing cells are virus resistant nor the maraistems have antiiviral compounds . |
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| 17. |
Which one of the following is not a fungal disease ?A. Rust of wheatB. Smut of barhraC. Black rot of crucifersD. Red rot of sugar cane |
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Answer» Correct Answer - C Black rot of caucifers is not a fungal disease , it is caused by a bactria ,Xanthomaones campestris Other three diseases are caused by fungal infection . Rust of wheat is caused by a gugus puccinia ,Red rot of sugarcane is caused by Colletotrichum falcatum and smut of barjra is caused by Tolysporium penicillariae. |
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| 18. |
Discuss natural selection and artificial selection . What are the implications of the latter on the prcess of evloution ? |
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Answer» Natural selection is a gradual , non-random process by which biological traits become either more or less common in a population as a function of differential reproduction of their bearers it it is a key mechanism to evolution. |
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| 19. |
Discuss briefly how pure lines are created in animal husbandry. |
| Answer» when breeding is between animals of the same breed it is called inbreeding . If we want to evole a pureline in any animal . Inbreeding (for 4-6 generation ) is necessary . It also helps in accumulation of superior genes and elimination of less desirable gens by increasing homozygosity. | |
| 20. |
Sonalika and Kalyan Sona are varieties ofA. wheatB. riceC. milletD. Tabacco |
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Answer» Correct Answer - A Sonalika and kalyan sona outstanding semi-dwarf varieties of wheat possessinng amber gains and yield potential they were developed in 1963 at indian Agriculture Research insitiute as a part of systmatic programme for breeding semi-dwarf wheat varieties. |
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| 21. |
Define the term stress for plnats .Discuss briefly the two types of stress encountered by plants . |
| Answer» Stress for plants can be defined as any exernal factor that nagative ly influences plant growth , productivity reproductive capacity or survival this includes a wide range of factors which can be broadly divided into abiotic or survival , this includes a wide range of factors which can be broadly divided into abiotic or environmental stess factors like salinity extreme termperature drught etc. and biological stress factors . | |
| 22. |
Discuss the improtance of testing of new plant varieties in a geographically vast country like india. |
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Answer» Before the new plants are generated through plant breeding programs they need to be evaluted for their yield and other agronmic triaits of quality disease resistance etc. the testing is done on the farmers field for at least three growing seasons ,at different locations in the country repesenting all the agroclimatic where the crop is usually grown the material is evaluated in comparison to the best available local crop cultivar known as a check or reference cultivar. |
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| 23. |
Plants rised though tissue cultures are clones of the parent plant. Discuss the utility of these plants. |
| Answer» Plants resied through tissue culture are very usful because they identical copy of the parent plant this is of great use when desirable traits of the parent plant have to be maintained . | |
| 24. |
it is Easier to culture the plant cells in vitro as compared to animals cells why ? |
| Answer» It is easier to culture the plant cells in vitro as animals because , the plant cells have the property to glow into plant this propenrty of plant cell is termed as totipotency , this ability is limited in animal cells . | |
| 25. |
How can we improve the success rate of fertillisatin artificial insemination in animal usbendry programmers? |
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Answer» to inprove chances of successful production of hybrids many means are used ,One such programme is called MOET or multiple Ovulation Embryo Transfer During this procesdure a cow is given hormonal treatment so that more than one ovule (6-8 eggs ) is produced per cycle . After mating or artificial insemaination , the embryos aat 8-32 celled state are transferred to different surrogate mothers , the method has been successully used for cattle , sheep. buffalo,etc. |
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| 26. |
is there any relationship between dedifferention and the higher degree of success achieved in plant tissure experiments ? |
| Answer» Yes , when a cell dedifferention once it gets regressed back to its embroynic stages and then can again differentiate into any form of tissue so the plant tissue can be more successful as kind of tissue can be produced even from differentiated cells. | |
| 27. |
Use of certain chemicals and radiation to change the base sequences of genes of crop plants is termedA. Recombinant DNA technologyB. transgenic mechanismC. Mutation breedingD. gene therapy |
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Answer» Correct Answer - C it is possible to induce mutations artficially in crop plants through the use of chemicals or radiations (like gamma radiations ) , and then seleting and using those plants that have the sesirable character as a source in breeding , this process is called mutation breeding . Use of readiations is not involed in other options Recombinant DNA techology involes transfering of a desired engtic engineeing gene (trans gene) from an organism and incorating it to host oprganism by genetic engineering to produce a recombinant to gene therapy is performed mainly in humans , it involes replacing replacing a defertive gene with a normal one. |
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| 28. |
Fungicides and antibiotics are chemicals thatA. enhance yield and disease resistanceB. Kill pathogenic fungi and bacteria , RespecivelyC. kill all pathogenic microbesD. Kill pathogenic bacteria and fungi respectively |
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Answer» Correct Answer - B A Wide range of Fungi , bacterial and viral pathogens affect the yield of cultivated crop species Fungides and antibiotics are chemicals that kill pathogenic fungi and bacteria , respectively. |
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