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Double fertilization (or triple fusion) ...

Double fertilization (or triple fusion) leading to initiation of endosperm in angiosperms, requires:

A

Fusion of 4 or more polar nuclei and the second male gamete only

B

Fusion of 2 pole nuclei and second mare gamete only

C

Fusion of one polar nucleus and second male gamete only

D

All the above types of fusion in different types of angiosperms

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The correct Answer is:
B
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MBD PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANTS-QUESTION BANK
  1. Male gamete in angiosperm is produced by :

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  2. 8-nucleate embryo sac is :

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  3. Double fertilization (or triple fusion) leading to initiation of endos...

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  4. Many scientists consider viruses as living entities because these:

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  5. The mode of asexual reproduction in bacteria are:

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  6. Pollen tube usually enters the embryo sac :

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  7. Which one of the following represents an ovule , where the embryo sac ...

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  8. Which of the followiing represent the edible part of the fruit of litc...

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  9. Study of pollen grain is called:

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  10. Select the correct order of endosperm types:

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  11. Endosperm is consumed by developing embryo in the seed of:

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  12. Nucellar polyembryony is reported in species of

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  13. The presence of filiform apparatus is the characteristic feature of

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  14. What would be the number of chromosomes of the aleurone cells of a pla...

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  15. The gynoecium consists of many free pistils in flowers of:

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  16. Both autogamy and geitonogamy are prevented in

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  17. An organic substance that can withstand environ mental extremes and ca...

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  18. Placentation in tomato and lemon is:

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  19. Which of these is a condition that makes flowers invariably autogamous...

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  20. Match the Column I with Column II. Choose the correct option.

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