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Why does ozone hole form over Antarctica...

Why does ozone hole form over Antarctica? How will enhanced UV-radiations affect humans?

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MBD-MODEL TEST PAPER -2-EXERCISE
  1. Differentiate gene therapy and gene cloning.

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  2. What are molecular scissors? Explain their role.

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  3. Why does ozone hole form over Antarctica? How will enhanced UV-radiati...

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  4. Differentiate between grazing food chain and detritus food chain.

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  5. Explain any three ways-other than zoological parks, botanical gardens ...

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  6. Differentitae between spermatogensis and oogenesis on the basis of: T...

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  7. Differentitae between spermatogensis and oogenesis on the basis of: S...

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  8. Differentitae between spermatogensis and oogenesis on the basis of: N...

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  9. Name the hormones which stimulate the testes?

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  10. Differentiate btween incomplete dominance and co-dominance. Substantia...

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  11. We are told that evolution is a continuing phenomenon for all living t...

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  12. "Species Bt Toxin gene is incorporated into cotton plant so as to cont...

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  13. Define adolescence.

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  14. Name the biological process that enables continuity of species.

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  15. Offspring derived by asexual reproductrion are called clones.justify b...

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  16. Name an organism where cell division in itself is a mode of reproducti...

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  17. Spiny or sticky pollen grains and large,attractively coloured flowers ...

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  18. Study the graph given below related to menstrual cycle in demales: Id...

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  19. Which of the following statement is true of yeast?

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  20. In yeast and Amoeba,the parent cell divides to give rise to two new in...

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