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XII BOARDS PREVIOUS YEAR-XII BOARDS-SET-I
- Describe how the lac operon operates, both in the presence and absence...
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- why should we conserve biodiversity ? How can we do it ?
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- explain the importance of biodiversity hot-spots and sacred grove...
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- a) What is an age-pyramid? b) Name three representative kinds of age...
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- How does an age pyramid for human population at given point of ...
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- Name the embryonic stage that gets implanted in the uterine wall of a ...
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- State the importance of bio-fortiiication.
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- Biotechnologists refer to Agrobacterium tumifaciens as a natural genet...
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- How do algal blooms affect the life in water bodies
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- Name the common ancestor of the great apes man.
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- Write a difference between net primary productivity and gross producti...
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- Mention the contribution of genetic maps in human genome project.
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- Name the phase all organisms have to pass through before they can repr...
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- Name the enzyme produced by Streptococcus bacterium. Explain its impor...
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- How is Rosie considered differen from normal cow ? Explain
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- State the use of Biodiversity in modern agriculture.
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- Write the full form of VNTR. How is VNTR different from Probe
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- Differentiate between benign and malignant tumours.
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- Differentiate between in situ and ex situ approaches of conservation o...
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- The above graph show Species-Area relationship. Write the equation of ...
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