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In angiosperms, functional megaspore de...

In angiosperms, functional megaspore develops into :

A

Embryo sac

B

Ovule

C

Endosperm

D

Pollen sac

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The correct Answer is:
A
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Assertion : The method of development of embryo sac from a single functional megaspore is termed as monosporic development. Reason : In monosporic (Polygonum) type of embryo sac development, usually the megaspore which is situated towards micropylar end remains functional.

Assertion : In angiosperms, endosperm development precedes embryo development. Reason : Double fertilisation ensures that the nutritive tissue is formed before the zygotes starts cleaving so that the energy spent on the formation of endosperm does not get wasted.

MODERN PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANT-EXERCISE
  1. What would be the number of chromosomes of the aleurone cells of a pla...

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  2. Which one of the following pollination autogamous ?

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  3. In angiosperms, functional megaspore develops into :

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

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  5. Wind pollination is common in :

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  6. What is common between vegetative reproduction and apomixis ?

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  7. The formation of pericarp takes place from :

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  8. Find out the odd one.

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  9. Ovule is attached to placenta of ovary wall by :

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  10. Entry of the pollen tube with two male gametes and tube nucleus throug...

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  11. Apomixis on plant means, development of a plant :

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  12. Development of embryo sac from any cell of nucellus is called :

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  13. The major application of embryo culture is in :

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  14. Apomixis is a type of reproduction that results in the development of ...

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  15. Perisperm in angiospermic seeds is derived from :

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  16. In ovule meiosis occurs in :

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  17. The fusion product of polar nuclei and male gamete is :

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  18. The secondary nucleus after fusing with one of the two male gametes de...

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  19. If an endosperm cell of an angiosperm contains 24 chromosomes, the num...

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  20. Ovule is attached to placenta by a slender stalk called :

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