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XII BOARDS PREVIOUS YEAR-XII BOARDS-SET-III
- Which of the following is a free living bacteria that can fix nitrogen...
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- Name the muscular and the glandular layers of human uterus . Which one...
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- Name the hormnal composition of the oral contraceptive used by human f...
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- What is 'r' in the population equation given : dN/dt = rN
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- How does the increase and the decrease in the value of'r' affect the p...
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- Name the respective forms in which the malaria parasite gains entry in...
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- Name the hosts where the sexual and the asexual reproductions of malar...
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- Name the toxin responsible for the appearance of symptoms of malaria i...
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- What did Meselson and Stahl observe when They cultured E. coli in a...
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- You are given a red flower-bearing pea plant and a red flower-hearing ...
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- Draw a labelled diagram of a m.ature embryo sac Why does a pollen gr...
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- Draw a schematic diagram of a human sperm and label the cellular compo...
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- Why green plants are not found a certain depth in the ocean ?
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- State the dual role of deoxyribonucleoside triphosphates during DNA re...
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- Explain the role of Ti plasmids in biotechnology.
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- State the functions of primary and secondary lymphoid organs in human...
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- Why do farmers prefer biofertilisers to chemical fertilizers these day...
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- Name the stage'of plasmodium that gains entry into the human body. (...
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- Trace the events that occur in human body to cause immunodeficiency wh...
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- When and Where does spermatogenesis occur in human male ? (b) Draw a...
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