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Self pollination is prevented by (A) Di...

Self pollination is prevented by
(A) Dichogamy
(B) self sterility
(C) herkogamy
(D) all the above

A

Dichogamy

B

self sterility

C

hekrogamy

D

all the above

Text Solution

Verified by Experts

The correct Answer is:
D
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KUMAR PRAKASHAN-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Section -F (Multiple Choice Questions)
  1. What is meant by emasculation? (A) Pollination between flower of same...

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  2. The term used when anther and stigmas of intersexual or perfect flower...

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  3. Self pollination is prevented by (A) Dichogamy (B) self sterility ...

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  4. Pollination which can occur in same plant is favoured by (A) herkogam...

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  5. ……favours autogamy (A) Dicliny (B) Dichogamy (C) Hekrogamy (D) ...

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  6. The flower may be of two or more types with regard to the length of st...

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  7. Allogamy has to be always performed with the help of (A) external age...

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  8. Allogamy is best favoured by (A) cleistogamy (B) dicliny (C) homo...

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  9. Allogamy is very useful because it results in (A) Formation of male ...

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  10. Another term for cross-pollination is (A) allogamy (B) xenogamy ...

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  11. The most exceptional feature of zoophilous flower is (A) scented havi...

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  12. In bisexual flowers, stamen and carpel mature at different times, by w...

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  13. In bisexual flowers, stamen and carpel mature at different times, by w...

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  14. …….is favoured by protandry (A) Self pollination (B) Cross pollinat...

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  15. To avoid self-pollination and provide contrivance for cross pollinatio...

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  16. Maize flowers are (A) autogamous (B) entomophilous (C) anemophilo...

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  17. In ……..flowers the stigma is always branched rough and sticky (A) ent...

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  18. Pollen grains of flower pollinated by wind or insects are not….. (A) ...

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  19. Besides tube nucleus, the pollen tube at the time of the entry of embr...

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  20. Egg apparatus is present on (A) micropylar end (B) chalazal end ...

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