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XII BOARDS PREVIOUS YEAR-XII BOARDS-Section D
- Describe the process of megasporogenesis upto fully developed embryo s...
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- Given below is the diagram of a human ovum surrounded by a few sperms....
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- Study the schematic representation of the genes involved in the lac op...
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- (a) How does the Hardy-Wienberg equation explain genetic equilibrium ?...
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- (a) Study the flow chart given below and complete the equation that fo...
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- (a) ''The pyramid of energy is always upright.' Explain. (b) Explai...
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- a) Draw a L.S. of a pistil showing pollen tube entering the embryo-sac...
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- Draw a diagrammatic sectional view of a human seminiferous tubule, and...
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- a) Write the conclusin drawn by Griffith at the end of his experiment ...
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- Explain the mechanism of sex-determination in humans. b) Differentia...
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- A person in your colony has recently been diagnosed with AIDS. People/...
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- a) Write the specific features of the genetic code AUG. b) Genetic c...
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- a) Differentiate between dominance and co-dominance. b) Explain co-d...
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- How does the process of natural selection affect Hardy-Weinberg equili...
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- Explain Mendel's law of independent assortment by taking a suitable ex...
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- How did Morgan show the deviation in inheritance pattern in Drosophila...
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- a) Why does endosperm development precede development in angiosperm s...
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- Explain the ovarian and uterine events that occur during a menstrual c...
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