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451.

Crack isA. Synthetic opiodB. PencyclidineC. Cocaine bicarbonateD. Tetrahydrocannibol

Answer» Correct Answer - C
452.

Ultrasound was first used byA. Olaf von RamB. Ian DonaldC. HardyD. Einthoven

Answer» Correct Answer - B
453.

Which one is an endoscopeA. LaproscopeB. ProctoscopeC. LaryngoscopeD. All the above

Answer» Correct Answer - D
454.

Deaths due to malaria every year numberA. 100 millionB. 20 millionC. 5 millionD. `0.5` million

Answer» Correct Answer - C
455.

Percentage of world population suffering from diabetes isA. `48%`B. `24%`C. `4%`D. `1%`

Answer» Correct Answer - C
456.

Number of malaria patients every year isA. 1000 millionB. 400 millionC. 100 millionD. 40 million

Answer» Correct Answer - B
457.

Read the following statement having two blanks (A) and (B):'A drug used for (A) patients is obtained from a species of the organism (B).' The correct option for the two blanks is:A. heart , PeniciliumB. organ-transplant, TrichodermaC. swine flu, MonascusD. AIDS , Pseudomonas

Answer» Correct Answer - B
458.

A drug used for patient A is obtained from the organism B. Identify A and B in the above statement and select the correct answer.A. `{:(A,B),("Swine flu","Monascus purpureus"):}`B. `{:(A,B),("AIDS","Pseudomonas denitrificas"):}`C. `{:(A,B),("Heart","Penicillium chrysogenum "):}`D. `{:(A,B),("Organ transplant","Trichoderma polysporum"):}`

Answer» Correct Answer - D
Cyclosporin `A` is a cyclic oligopeptide obtained through fermentative activity of fungus Trichoderma polysporum. It has anti-fungal, anti-inflammatory and immunospuppressive properties. It inhibits activation of T-cells and therefore, prevents rejection reactions in organ transplantation.
459.

Stains used for lowering blood cholesterol level are extracted fromA. algaeB. bacteriaC. virusesD. yeast

Answer» Correct Answer - D
Statins are products of fermentation by yeast Monascus purpureus which resemble mevalovate and are competitive inhibitors of `beta`-hydroxy-`beta`-methyglutaryl or `HMG CoA` reductase. This inhibits cholesterol synthesis . Statins are, therefore, used in lowering blood cholesterol, e.g., lovastatin, pravastain, simvastatin.
460.

_______is the first step of sewage treatment.A. PrecipitationB. ChlorinationC. SedimentationD. Aeration

Answer» Correct Answer - C
Primary treatment in sewage treatment involves physical removal of particles (large and small) from the sewage through filtration and sedimentation. Initially floating debris is removed by sequential filtration. Then the grit (soil and small pebbles) are removed by sedimentation.
461.

During the primary treatment of sewage, solid paricles that settle down are calledA. flocsB. primary sludgeC. activated sludgeD. anaerobic sludge

Answer» Correct Answer - B
Primary or physical treatment in the process of removal of small and large, floating and suspended solids from sewage through two processes of filtration and sedimentation. First floating and suspended matter is removed through sequential filtration with progressively smaller pore filters. The sediment is called primary sludge while the supernatant is called primary sludge while the supernatant is called effluent. The primary sludge traps a lot of microbes and debris. it is subjected to composting, land fill or anerobicdigestion to produce biogas adn manure.
462.

A red pigment present in the root nodules of leguminous plants is known asA. CaroteneB. LeghaemoglobinC. HaemoglobinD. Xanthophyll

Answer» Correct Answer - B
463.

Vermicompost is brofertilizer rich inA. PhosphorusB. CalciumC. NitrogenD. All the above

Answer» Correct Answer - D
464.

Vermicompost is ecofreindly becauseA. Earthworms consume less and produce vermicompostB. Earthworms consume left overs and produce vermicompostC. Earthworms consume microbes and vermicompost is microbe freeD. Vermicompost does not alter soil quality unlike synthetic fertilizers

Answer» Correct Answer - D
465.

Which one among the following components of vermicompost contains plant growth factorsA. MicrobesB. Humic acidC. NitrogenD. Phosphorus

Answer» Correct Answer - B
466.

Biogas production is aA. Three step microbial processB. Three step physical processC. Four step aerobic processD. Four step anaerobic process

Answer» Correct Answer - A
467.

To control butterfly catrpillars we can useA. Ladybird beetleB. DragonfliesC. NuceopolyhedrovirusD. Bacillus thuringiensis

Answer» Correct Answer - D
To control butterfly caterpillars we can use Bacillus thuringiensis.
468.

Which of the following is one of the advantage of application of viruses as bioinsecticides?A. They are not used in IPM.B. They are less effective.C. They are species specific.D. They have negative impact on humans.

Answer» Correct Answer - C
Nucleopolyhedroviruses are excellent candidates for species-specific, narrow spectrum insecticidal application. They have been shown too have been shown to have no negative impacts on plants, mammals, bird fish or non-target insects.
469.

Mark the odd one (w.r.t. NPV)A. Narrow spectrum herbicideB. Species specificC. BioinsecticideD. Nucleoprotein particles

Answer» Correct Answer - A
470.

Which one of the following statement regarding BOD is true?A. The greatr the BOD ofwaste water, more is its polluting potential.B.C.D.

Answer» Correct Answer - A
471.

Biological control agent is obtained fromA. Bacillus thuringiensisB. E. coliC. Agrobacterium tumefaciensD. Meloidogyne incognito

Answer» Correct Answer - A
472.

Which is incorrect about the Nucleopolyhedrovirus (NPV)?A. These are species- specific.B. These are broad-spectrum.C. They have no negative impact on plants, mammals, bird fish and non-target insects.D. They aid in an overall IPM programme or when an ecologically sensitive area is being treated.

Answer» Correct Answer - B
Nucleopolyhedroviruses are excellent candidates for species-specific, narrow spectrum insecticidal application.
473.

Read the following statements and select the incorrect one.A. Little decomposition occurs during the formation of primary sludgeB. Formation of primary sludge requires ample aerationC. Activated sludge posses flocs of decomposer microbesD. Formation of activated sludge required aeration

Answer» Correct Answer - B
474.

Given below is the flow chart of sewage treatement. Identify A,B,C and D and select the correct option. A. A-Mechanical agitation, B-Increased BOD C-Activated sludge, D-Aerobic sludge digestersB. A-Mechanical agitation, B-Reduced BOD C-Activated sludge, D-Anaerobic sludge digestersC. A-Microbial digestion, B-Activated sludge C-Reduced BOD, D-Anaerobic sludge digestersD. A-Microbial digestion, B-Mechaical agitation C-Reduced BOD, D-Aerobic sludge digesters

Answer» Correct Answer - B
475.

Iron plough came into use aroundA. 1000 B.C.B. 1500 B.C.C. 500 B.C.D. First century B.C.

Answer» Correct Answer - C
476.

which of the following enzymes is employed in the conversion of corn starch into frucose - rich corn syrup ?A. AmylasesB. GlucoamylassesC. GlucoisomerasesD. All are correct

Answer» Correct Answer - D
477.

Find the correct option (w.r.t. Bioherbicide)A. Cactoblastis cactorumB. Helianthus annusC. Phytophthora palmivoraD. More than one option is correct

Answer» Correct Answer - 4
478.

The first bioherbicide developed in 1981 was based onA. Phytophthora palmivoraB. Phytophthora infestansC. Bacillus thuringenesisD. Azadirachta indica

Answer» Correct Answer - A
479.

Sratins are competitive inhibitors ofA. StreptokinaseB. HMG COA reductaseC. PectinaseD. Cellulase

Answer» Correct Answer - B
480.

Plough was developed aroundA. 3500 B.C.B. 2500 B.C.C. 1500 B.C.D. 500 B.C.

Answer» Correct Answer - A
481.

find the odd one out ( with respect to bioherbicide) :A. Cactoblastis cacatorumB. Heianthus anusC. Phytophtora palmivoraD. Cochliomyia

Answer» Correct Answer - D
482.

which of the following organic acid is used as a source of calcium for infants , cows. And lactating mothers?A. Gluconic acidB. Lactic acidC. Citric acidD. Acetic acid

Answer» Correct Answer - A
483.

sustainable agriculture does not includeA. Ecofriendly croppingB. green revolutionC. IPMD. Biological control

Answer» Correct Answer - B
484.

Settled agriculture was first practised byA. AryansB. RomansC. ChineseD. Sumerians

Answer» Correct Answer - D
485.

What are the different uses of biogas?

Answer» Correct Answer - Biogas is used as fuel for heating and cooking. Lighting, power for irrigation and other purposes.
486.

organic acid used in pharmaceuticals , coloring agents , and plastic industries isA. Acetic acidB. Citric acidC. Lactic acidD. Glucose acid

Answer» Correct Answer - A
487.

the concept of sustainble agriculture lies inA. Minimizing biopesticidesB. A greater dependance on new cropsC. Least use of biofertillizersD. using sports of bacillus thuringiensis for pest control

Answer» Correct Answer - D
488.

the first mycoherbicide of the world was obtained fromA. Trichoderma harzianumB. Phythora palmivoraC. Calctblastis cactormD. Pythium debaiynum

Answer» Correct Answer - B
489.

Name the kind of cheese which possess characterisitc holes.

Answer» Correct Answer - Swiss cheese.
490.

Name any two important kinds of cheese.

Answer» Correct Answer - Swiss cheese and Roquefort cheese.
491.

Study the lists and find the correct match A. a-iv, b-iii, c-ii, d-vB. a-v, b-ii, c-iii, d-iC. a-ii, b-i, c-iv, d-vD. a-ii, b-v, c-iv, d-i

Answer» Correct Answer - D
492.

Match the columns A. a-iii, b-iv, c-i, d-iiB. a-iv, b-iii, c-ii, d-iC. a-iv, b-ii, c-i, d-iiiD. a-iii, b-i, c-iv, d-ii

Answer» Correct Answer - A
493.

Match the columns and choose the appropriate option A. a-r, b-s, c-q, d-pB. a-t, b-q, c-s, d-rC. a-q, b-s, c-t, d-rD. a-r, b-s, c-q, d-t

Answer» Correct Answer - A
494.

Match the following Columns. A. `{:(A,B,C,D),(2,4,3,1):}`B. `{:(A,B,C,D),(3,4,2,1):}`C. `{:(A,B,C,D),(4,1,2,3):}`D. `{:(A,B,C,D),(3,2,1,4):}`

Answer» Correct Answer - B
495.

Who discovered the first antibiotic penicllin ?A. WaksmanB. C AlexaderC. A FlemingD. Rodriquez

Answer» Correct Answer - C
496.

Yeast yield:A. RiboflavinB. Vitamin` B_(12)`C. TocopherolD. Ascorbic acid

Answer» Correct Answer - A
497.

Hexachlorophene is a bactericide often used inA. MedicinesB. AntibioticsC. Disinfectants and soapsD. Preservatives

Answer» Correct Answer - C
498.

Vitamin `B_(12)` is produced directly during the course of fementation byA. Ashbya gossypiiB. Rhizopus stoloniferC. PropionibacteriumD. Saccharomyces cerevisiae

Answer» Correct Answer - C
499.

The bacteria used in the production of Vitamin `B_(12)`:A. Propionibacterium frendenreichiiB. Bacillus magatheniumC. Strepomyces olivaceusD. All of the above

Answer» Correct Answer - D
500.

Which is source of Vitamin `B_(12)`A. Asbhya gossypiiB. PropionibacteriumC. Pseudomonas denitrificansD. None of the above

Answer» Correct Answer - A