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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-BIOLOGY (Theory)[SET-I][Comptt.] Section -C
- (i) How many primary follicles are left in each ovary in a human femal...
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- Draw a labelled diagram of a section of an enlarged view of microspora...
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- Name the cells and the events they undergo to produce pollen grains.
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- Describe any three steps taken up by our government to check populatio...
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- Work out the monohybrid cross upto F(1) by taking a suitable example s...
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- In a typical nucleus, some regions of chromatin are stained light and ...
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- Write any three goals of Human Genome Project.
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- (i) Which organ of the human body is initially affected when bitten by...
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- (a) Why is mother's milk considered very essential for the healthy gro...
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- How does Agrobacterium tumifaciens act as a suitable vector in the bio...
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- People are quite apprehensive to use GM crops. Give three arguments in...
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- Explain how Eli Lilly, an American company produced insulin by recom...
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- State Gause's Competitive Exclusion Principle.
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- (a) " Oraganisms may be conformers or regulators . " Explain this sta...
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