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State the role of thymus as a lymphoid o...

State the role of thymus as a lymphoid organ. Name the cells that are released from it and mention their function.

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XII BOARDS PREVIOUS YEAR-XII BOARDS-Section B
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  3. State the role of thymus as a lymphoid organ. Name the cells that are ...

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  4. 'Artificial insemination helps overcome several problems of normal mat...

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  5. Which type of population interaction is found between clown fish and s...

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  6. Write the relationship between productivity, gross primary productivit...

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  7. Justify the need for signing of 'Montreal Protocol' by the participati...

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  8. Write the effective remedy found by Ahmed Khan of Bengaluru for the ef...

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  9. In angiosperms, zygote is diploid while primary endosperm cell is trip...

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  10. A cross between a red flower bearing plant and a white flower bearing ...

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  11. List the two main prospositions of Opain and Haldane.

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  12. Write the events that take place when a vaccine for any disease is int...

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  13. Name the bacterium responsible for the large holes seen in "Swiss Chee...

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  14. Name the source of the DNA polymerase used in PCR technique. Mention w...

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  15. Write any four ways used to introduce a desired DNA segment into a bac...

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  16. Why is pro insulin so called ? How is insulin different form it?

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  17. Where would you expect more species biodiversity- in tropics or in pol...

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  18. "It is possible that a species may occupy more than one trophic level ...

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  19. Why are human females rarely haemophilic? Explain. How do haemophilic ...

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  20. In a maternity clinic, for some reasons the authorities are not able t...

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