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Assertion : Cellular endosperm is formed...

Assertion : Cellular endosperm is formed by both nuclear division and wall formation
Reason : It lacks haustoria.

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

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The correct Answer is:
C

The cellular endosperm is characterized by the absence of free nuclear stage. The division of the primary endosperm nucleus and a few subsequent nuclear division are followed regularly by wall formation. The occurrence of haustoria is a common feature of this type of endosperm the haustoria may be micropylar or chalazal. Occasionally, both type of haustoria are present in the same plant.
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ERRORLESS -SEXUAL REPRODUCTIO IN FLOWERING PLANTS-Sexual Reproductio In Flowering Plants
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  2. Assertion : The chalazal cells of the ambryo sac is central cell Rea...

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  3. Assertion : The largest cell of the embryo sac is central cell Reaso...

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  4. Assertion : Autogamy is pollination between two flowers on the same pl...

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  5. Assertion : Cellular endosperm is formed by both nuclear division and ...

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  6. Feathery stigma is called

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  7. Two rigid pointed look-like structures are present in

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  8. Most resistance biological material is Or An organic substance tha...

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  9. Which of the following plant product is the hardest

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  10. If position of ovary is below sepals petals and stamens, the fower is ...

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  11. The arrangement of the ovules on the placenta developed from the centr...

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  12. Who is author of book ''Inroduction to the Embryology'' of Angiosperms

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  13. Which of these is not essential for allogamy

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  14. Siphonogamy in angiosperm means

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  15. Plasmogamy refers to

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  16. A plant radised from a single germinating pollen grain under cultural ...

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  17. Match the following ovule structure with post fertilization structure ...

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  18. Heteroblastic means

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  19. In angiospherm, microsporgenesis and megasporogensis

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  20. Environmetal biotic factor that helps in pollination is

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