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The movement of pollen tube towards embr...

The movement of pollen tube towards embryo sac is

A

Thigmotactic

B

Thermotactic

C

Chemotactic

D

Phototactic

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-SEXUAL REPRODUCTION IN FLOWERING PLANTS -EXERCISE - II
  1. The insect Blastophaga grossorum is associated with the pollination of

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  2. Fusion of one male gamete with the egg cell and fusion of another male...

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  3. The movement of pollen tube towards embryo sac is

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  4. At what stage of endosperm development, you will observe nuclear or ce...

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  5. Milky water of green coconut is

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  6. Food material in exalbuminous seed is mainaly stored in

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  7. In the formation of 50 zygotes in a tobacco plant, the minimum number ...

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  8. When a diploid female plant is crossed with a tetraploid male, the plo...

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  9. The formation of fruits without fertilization is known as

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  10. Apospory is defined as

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  11. Apomixis in plant means development of a plant

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  12. Pollination in Vallisneria is by

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  13. The total number of nuclei involved in double fertilisation in angiosp...

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  14. A dry, one-celled and one-seeded fruit developing from a bicarpellary,...

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  15. Which of the following plants are likely to have wide range of distrib...

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  16. Milky water of tender coconut is

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  17. Which of the following statements is/are true ? (A) Endothecium lies ...

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  18. The edible portion in lotus is

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  19. In Clematis and Naravelia, dispersal of fruits takes place by wind. Wh...

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  20. Parthenocarpy is not desirable in

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