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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-SET-II
- A color-blind child is born to a normal couple. Work out a cross to sh...
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- in certain seasons we sweet profusely while in some other sea...
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- List the criteria a molecule that can act as genetic materia...
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- Differentiate between analogy and homology giving one example on...
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- Why is it essential to have a ' selectable marker' in a cloning vector
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- Why are some molecules called bioactive molecules ? Give two examples ...
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- List the two types of immunity a human baby is born with. Explain the ...
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- Explain the response of all communities on environment over time.
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- (a) Name the causative agent of typhoid in humans. (b) Name the test a...
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- (a) Name the scientist who called tRNA an adapter molecule (b) Draw ...
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- Why are the wings of a butterfly and of a bat called analogous?
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- How are the two following varieties of sugarcane different from each o...
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- Name the cell from which the endosperm of coconut develops. Give the c...
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- How does Cu-T acts as an effective contraceptive for human females?
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- Nematode-specific genes are introduced into the tobacco plant using Ag...
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- Egrets are often seen along with grazing cattle . How do you refer to ...
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- Mention the target cells of luteinising hormone in human males and fem...
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- Draw a diagramatic sectional view of human ovary showin stages of ooge...
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- How does the pollen mother cell develop into a mature pollen grain? Il...
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- How did Hershey and Chase prove that DNA is the hereditarymaterial ? E...
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