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Cross pollination is preferred over self...

Cross pollination is preferred over self pollinationn because it

A

produces better offspring

B

forms new varieties

C

induces parthenogenesis

D

both a and b

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The correct Answer is:
B
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Assertion :- Geitonogamy is functionaly cross pollination and genetically self pollination. Reason :- It involves pollinating agent but pollen grains come from same plant

ARIHANT NEET-SEXUAL REPRODUCTION IN FLOWERING PLANTS -ASORTED QUESTIONS
  1. Movement of pollen tube towards embryo sac is

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  2. Pollen grains are able to tolerate extremes of temperature and desicca...

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  3. Cross pollination is preferred over self pollinationn because it

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  4. During formation of pollen grains, a microspore mother cell undergoes

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  5. In a type of apomixis known as adventure embryony embryos develop dire...

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  6. Formation of more than four spores in a tetrad known as polyspory is f...

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  7. A particular species of plant produces light, non-sticky pollen in lar...

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  8. A seed that lacks endosperm. It may be

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  9. Which of these following are related with embryo sac? Oenothera type...

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  10. In microporangium, microspore tetrad are formed due to

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  11. The Ubish bodies are involved in

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  12. The hydrophilous flowers, pollinated completely under water, are known...

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  13. Pollen grains of a flower fall on the stigma of another flowers of sam...

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  14. Allogamy is very useful because it results in the

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  15. In a typical complete, bisexual and hypogynous flower the arrangement ...

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  16. When the body of the ovule lies at right angles to the funicle and the...

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  17. The most exceptional feature of zoophilous flowers is

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  18. Flower with a feathery and sticky stigma, numerous light pollen, reduc...

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  19. Choose the correct match.

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  20. Wall of a pollen sac consists of

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