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Name the outer hard covering of pollen g...

Name the outer hard covering of pollen grains made up of sporopollenin.

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Genes are made up of :

Assertion : Exine of a pollen grain is made up of sporopollenin which is resistant to high temperature, strong acid or alkali as well as enzymatic degradation. Reason : Sporopollenin is absent in the region of germ pores.

What is pollen grain ?

Bulk of tooth is made up of:

MODERN PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANT-EXERCISE
  1. Pollen grains can be stored for several years in liquid nitrogen havin...

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  2. Name the process of formation of microspore from pollen mother cells.

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  3. Name the outer hard covering of pollen grains made up of sporopollenin...

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  4. What term is used for inner wall of the pollen grain?

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  5. Name the plant in which the pollen grains are not covered by exine.

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  6. What is the shield shaped single cotyledon of monocut called ?

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  7. Which part of ovule forms perisperm ?

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  8. Name the smallest flower of the world.

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  9. Name the largest flower of the world.

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  10. Which part of flower serves as landing platform of pollen grain?

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  11. Which term is used for basal bulging part of the pistil ?

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  12. What term is used for pollination achieved within same flower ?

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  13. What term is applied for transfer of pollen grains from anther to stig...

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  14. What is the special mechanism to produce seed without fertilization ?

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  15. Occurrance of more than one embryo in a seed.

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  16. True fruit is formed from .

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  17. The inactivity state of an embryo.

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  18. Name the structure that covers the root tip.

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  19. The embryonal axis below the level of cotyledons is called

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  20. Fill in the blank: The part of embryonal axis above the level of cotyl...

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