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XII BOARDS PREVIOUS YEAR-XII BOARDS-SECTION-C
- Compare in any three ways the chromosomal theory of inheritance as pro...
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- Explain the mechanism of DNA repication with the help of a replication...
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- (a) Write two differences between Homo erectus and Homo habilis. (b...
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- Name the group of bacteria involved in setting milk into curd. Explain...
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- Bee keeping practice is a good income generating industry. Write the d...
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- (a) Match the microbes listed under Column -A with the products mentio...
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- Describe the formation of recombinant DNA by the action of EcoRI. OR...
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- Two children, A and B aged 4 and 5 years respectively visited a hospit...
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- List six advantages of "ex-situ" approach to conservation of biodivers...
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- While on a visit to a pond in the city-neighbourhood, the visitors wer...
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- (a) Name the organic material exine of the pollen grain is made up of....
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- Differentiate between divergent and convergent evolution. Give one exa...
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- Name two hormones that are constituents of contraceptive pills. Why do...
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- Are humming birds and fish regulators or conformers ? Give reasons in ...
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- (a) What is green revolution ? Mention the steps that led to it (b) ...
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- Expand 'ELISA'. Why is this method preferred over conventional methods...
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- State the objective with which a dairy farm is set up .Describe the es...
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- Write in what context did Darwin use the terms ' fitness', survival an...
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- Name the specific enzyme responsible for nucleotide polymerisation in ...
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- Write the causative agent of filariasis in human. Mention its mode of ...
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