Recent questions tagged theoryquestion

Why do fresh water organisms have contractile vacuoles whereas majority of marine organisms lack the

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If a fresh water fish is placed in an aquarium containing seawater, will the fish be able to survive

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What is brood parasitism? Explain with the help of an example.

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Define Ectoparasite and endoparasite with suitable example.

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What is high altitude sickness? Write its symptoms. 

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What is a diapause and its significance?

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What is homeostasis? 

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Why do high areas have brighter sunlight and lower temperatures as compared to the plains?

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Which element is responsible for causing soil salinity? At what concentration does the soil become s

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What is a tree line?

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Give the scientific name of any two microorganisms inhibiting the human intestine.

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In an association of two animal species, one is a termite which feeds on wood and the other is a pro

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Give a suitable example for commensalism. 

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Define aestivation. 

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What are the organisms that feed on plants sap and other plant parts called?

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What would be the growth rate pattern, when the resources are unlimited? 

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Emergent land plants that can tolerate the salinities of the sea are called?

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What is Mycorrhiza? 

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Name the association in which one species produces poisonous substance or a change in environmental

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What is commensalism? 

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What is the interaction between two species called? 

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Define stenohaline species.

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Species that can tolerate wide range of salinity are called?

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What are eurythermic species? 

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Species that can tolerate narrow range of temperature are called ?

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While creating genetically modified organisms, genetic barriers are not respected. How can this be d

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<div>Name the five key tools for accomplishing the task of recombinant DNA technology and mention th

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What is meant by the term biopesticide? Name and explain the mode of action of popular biopesticide.

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List the disadvantages of insulin obtained from the pancreas of slaughtered cows and pigs.

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Explain with the help of one example how genetically modified plants can (a) Reduce usage of chemica

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What are the various advantages of using genetically modified plants to increase the yield of the cr

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<div>Highlight five areas where biotechnology has influenced our lives.</div><div><br></div><div>The

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Define transgenic animals. Explain in detail any four areas where they can be utilized?<br>

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A patient is suffering from ADA deficiency, can he be cured? How?

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Bt cotton is resistant to pest, such as lepidopteron, dipterans and coleopterans. Is Bt cotton also

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When a foreign DNA is introduced into an organism, how is it maintained in the host and how is it tr

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Gene therapy is an attempt to correct genetic defect by providing the normal gene into the indi

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Define antigen and antibody. Name any two diagnostic kits based on them.

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Taking examples, under each category, discuss upstreaming and downstream processing.

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Why is it that the line of treatment for a genetic disease is different from infectious disease.?

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What is recombinant DNA vaccine? Give two examples.

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Gene expression can be controlled with the help of RNA. Explain the method with an example.

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Discuss the advantages of GMO.

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For which variety of Indian rice, the patent was filed by a USA company?

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With respect to understanding diseases, discuss the importance of transgenic animal models.

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How was insulin obtained before the advent of rDNA technology? What were the problems encountered?

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How is mature, functional insulin hormone different from prohormone form?<br>

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ELISA technique is based on the principles of antigen-antibody interaction. Can this technique be us

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PCR is a useful tool for early diagnosis of an infectious disease. How.

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Give the full form of ELISA. Which disease can be detected using it? <br>Discuss the principle under

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