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XII BOARDS PREVIOUS YEAR-XII BOARDS-SECTION-B
- Describe the structure of a nucleosome.
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- Mention the evolutionary significance of the following organisms : (...
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- In an agricultural field there is a prevalance of the following organi...
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- How does the applications of the fungal genus, Glomus, to the agricult...
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- Plenty of algal bloom is observed in a pond in your locality. a) Wri...
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- Mention the role of ribosomes in peptide-bond formation. How does ATP ...
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- How do copper and hormone releasing IUDs act as contraceptives? Explai...
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- If you squeeze a seed of orange you might observe many embryos of diff...
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- A recombinant DNA is formed when sticky ends of vector DNA and foreign...
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- (i) Mention the number of primers required in each cycle of polymerase...
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- Define the term 'health'. Mention any two ways of maintaining it.
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- Why does a doctor administer tetanus antitoxin and not a tetanus vacci...
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- Giving two reasons explain why there is more species biodiversity in t...
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- Name an opioid drug and its source plant. How does the drug affect the...
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- Mention the major cause of air pollution in metro cities. Write any th...
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- How did Eli Lilly synthesis the human insulin ? Mention one difference...
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- Placenta acts as an endocrine tissue. Justify.
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- Differentiate between menarche and menopause.
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- List the features that make a stable biological community.
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- Mention how e-waste is produced and disposed off. Write the solution f...
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