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951.

Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group?A. Paramecium and Plasmodium belong to the same kingdom as that of PenicilliumB. Lichen is a composite organism formed from the symbiotic association of an algae and a protozoanC. yeast used in making bread and beer is a fungusD. Nostoc and Anobaena are examples of protista

Answer» Correct Answer - C
952.

Measuring Biochemical Oxygen Demand (BOD) is a method used for:A. Measuring the activity of Saccharomyces cerevisiae in producing curd on a commercial scaleB. Working out the efficiency of R.B.Cs. about their capacity to carry oxygenC. Extimating the amount of organic matter in sewage waterD. Working out the efficiency of oil driven automobile engines

Answer» Correct Answer - 3
953.

All are correct w.r.t. BOD (Biochemical Oxygen Demand), exceptA. It refers to the amount of oxygen that would be consumed if all the organic matter in one liter of water were oxidised by bacteriaB. The BOD test is a measure of the organic matter present in the waterC. The greater the BOD of waste water, less is its polluting potentialD. Waste water is treated till BOD is reduced significantly

Answer» Correct Answer - 3
954.

Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receving effluents from:A. domestic sewageB. dairy inductryC. petroleum industryD. sugar industry

Answer» Correct Answer - C
Biochemical Oxygen Demand (BOD) is not a good index for checking the pollution levels of water bodies receving effluents from petroleum industry. This is because such effluents contains waste which is non-biodegradable
955.

High value of BOD (Biochemical Oxygen Demand) indicates that:A. water is pureB. water is highly pollutedC. water is less pollutedD. consumption fo organic matter in the water is higher by the microbes

Answer» Correct Answer - B
956.

Assertion : An organ transplant patient if not provided with cyclosporin A may reject the transplanted organ. Reason : Cycosporin A inhibits activation of T-cells and interferes with destruction of non-sefl cells.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true but reason is not the correct explanation of assertionC. If assertion is true but reason is falseD. If both assertion and reason are false

Answer» Correct Answer - A
Cyclosporin A is cyclic oligipeptide obtained through fermentative activity of fungus Trichoderma polysporum. It has immunosuppressive properties and inhibits activation of T-cells. T cells of immune system mainly function to kill non-self cells. Because cyclosporin A inhibits T cell function, it caused immunosuppression and chances of rejection of transplanted organ are reduced. Thus, organ transplant patients are provided with cyclosporin A.
957.

The most cammon substrate used in disrlilleris for the production of ehanol isA. MolassesB. Corn mealC. Soya mealD. Ground gram

Answer» Correct Answer - 1
958.

Explain why some microorganisms are called biofertilizers. Give two examples.

Answer» Certain bacteria and Cyanobacteria are nitrogen fixers. They convert atmospheric free nitrogen into ammonium form which is easily assimilated by higher plants. Thus, these microorganisms increase the fertillity of soil without. Causing any environmental harzards and therefore, called biofertillizers. Exmaples-Rhizobium and Anabaena.
959.

Name the substance that gives butter its characteristic butter aromaA. dimethylB. diactylC. propeneD. none of these

Answer» Correct Answer - B
960.

A preservative which can cause reaction in asthmatics, allergy and hyperactivity in childern isA. Sodium benzoateB. Sodium metabisulphiteC. Carboxy-methyl celluloseD. Both A and B

Answer» Correct Answer - D
961.

(A) : Any substance that increase body temperature is called pyrogen. (R): Aspirin in an antipyretic drug which brings down fever.A. If both (A) and (R) are true and (R) is the correct explanation of (A).B. If both (A) and (R) are true but (R) is not the correct explanation of (A).C. If (A) is true but (R) is false.D. If both (A) and (R) are false.

Answer» Correct Answer - B
962.

(A) : Allergy is an inappropriate over reaction of immune system. (R) : It is treated with drugs that cause vasodilation.A. If both (A) and (R) are true and (R) is the correct explanation of (A).B. If both (A) and (R) are true but (R) is not the correct explanation of (A).C. If (A) is true but (R) is false.D. If both (A) and (R) are false.

Answer» Correct Answer - C
963.

Cyclosporine-A: an immunosuppressive agent is produced by the fungusA. Fusarium graminearumB. Trichoderma pollysporumC. Aspergillus nigerD. Chaetomium cellulolyticum

Answer» Correct Answer - 2
964.

(A) : Cyclosporine is an immunosuppressive drug. (R) : it inhibits the activity of helper T-cells.A. If both (A) and (R) are true and (R) is the correct explanation of (A).B. If both (A) and (R) are true but (R) is not the correct explanation of (A).C. If (A) is true but (R) is false.D. If both (A) and (R) are false.

Answer» Correct Answer - A
965.

Cyclosporine is used as:A. for allergyB. as immunodepressantC. prophylacticfor virusD. none of the above

Answer» Correct Answer - B
966.

Pullorum disease of poultry is caused byA. MycobacteriumB. SalmonellaC. ClostridiumD. Hemophilus

Answer» Correct Answer - B
967.

(A): Typhoid fever is a viral disease. (R) : It is caused by togavirus.A. If both (A) and (R) are true and (R) is the correct explanation of (A).B. If both (A) and (R) are true but (R) is not the correct explanation of (A).C. If (A) is true but (R) is false.D. If both (A) and (R) are false.

Answer» Correct Answer - D
968.

One of the major difficulties in the biological control of insect/pest is thatA. The method is less effective as compared with the use of insecticidesB. The predator difficulty of introducing the predator to specific areasC. The predator develops a preference to other diets and may itself become a pestD. The predator does not always survive when tranferred to a new environment

Answer» Correct Answer - 4
969.

Assertion Alcohol contents of fhampagne wine is `12-16%` Reason Alcohol contents of rum is `40-55%.`

Answer» Correct Answer - B
About 12 - 16% of alchol is found in champagne, wine while the content of alcohol in fum is 60-70% .
970.

Who is credited with indentifying petro crops?A. SwaminathanB. CalvinC. KrebsD. Borlaug

Answer» Correct Answer - B
Calvin is credited with identifying petro-crops.
971.

The clot formation can be prevented by treatmet with ______ in gene therapy:A. DnaseB. TPAC. TGF-BD. Recombinant vaccine

Answer» Correct Answer - B
972.

Lactic acid is formed by the process ofA. FermentationB. GlycolysisC. HMP PathwayD. None of these.

Answer» Correct Answer - A
973.

Vnegar ir produced by acetic acid bacteria throughA. reduction of alcoholB. oxidation of acetic acidC. oxidation of alcoholD. decomposition of acetic acid

Answer» Correct Answer - C
974.

Probiotics areA. Cancer inducing microbesB. New kind of food allergensC. Live microbial food supplementD. Safe antiobiotics

Answer» Correct Answer - C
975.

Probiotics areA. live microbial foof microbesB. cancer inducing microbesC. new king of food allergensD. safe antibiotics

Answer» Correct Answer - A
976.

Ethanol is commercially produced through a particular species of:-A. AspergillusB. SaccharomycesC. ClostridiumD. Trichoderma

Answer» Correct Answer - 2
977.

Ethanol is commercially produced through a particular species of:-A. SaccharomycesB. ClostridiumC. Trichoderma polysporumD. Aspergillus

Answer» Correct Answer - A
978.

Ethanol is commercially produced through a particular species of:-A. ClostridiumB. TriclodermaC. AspergillusD. Saccharomyces

Answer» Correct Answer - D
979.

which of the following is not a symbiotic nitrogen fixing bacterium ?A. ClostridiumB. Rhizobium leguminsarumC. FrankiaD. Mycoterium

Answer» Correct Answer - A
980.

Which of the following is fermentation product of soybean ?A. SojuB. TofuC. ButterD. Both (a) and (b)

Answer» Correct Answer - D
981.

Match the following (column-I with column-II) A. a(iii), b(iv), c(i), d(ii)B. a(iv), b(ii), c(i), d(ii)C. a(iii), b(i), c(iv), d(ii)D. a(i), b(iii), c(ii), d(iv)

Answer» Correct Answer - 2
982.

the fermented food of soybean isA. TempehB. TofuC. SufuD. All of these

Answer» Correct Answer - 4
983.

The chemicals which are "pro-life" with reference to human beingsA. Are regarded as one of the most significant discovery of twenty first centuryB. Have rarely contributed to human welfareC. Are produced by some plants and all animalsD. Can kill or retard the growth of disease-causing microbes

Answer» Correct Answer - D
984.

Which of the the following microbe is the source of first antibiotic ?A. Penicillium notatumB. StaphylococciC. Aspergillus nigerD. Bacillus brevis

Answer» Correct Answer - A