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Nuclear endosperm has...

Nuclear endosperm has

A

Every nuclear division followed by wall formation

B

Initially free nuclear divisions followed by wall formation

C

First division followed by wall formation and other free nuclear

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
B
During the development of nuclear endosperm the primary endosperm nucleus divides repeatedly without wall formation i.e. produce large number of free nuclei The multinucleate cytoplasm undergo cleavage and gives rise to multicellular tissue e.g. Maize, Wheat, Rice, Sunflower etc.
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Nuclear endosperm is a character of :

Assertion : Nuclear endosperm is formed by subsequent nuclear division without wall formation Reason : Coconut is an example of such endosperm, where the endosperm remains nuclear throughout the development of the fruit.

A nuclear endosperm at a very stage of development

Assertion (A): The coconut water from tender coconut is free nuclear endosperm and the surrounding white kernel in coconut is the cellular endosperm. Reason (R): Primary endosperm nucleus (PEN) undergoes successive nuclear divisions to produce free nuclei.

In coconut , liquid nuclear endosperm is surrounded by white kernel which is

Assertion Nuclear endosperm does not involve wall formation after each meiotic division. Reason Coconut milk is an example of cellular endosperm.

(A) : Coconut milk is very rich and nutritive drink. (R) : It is in fact a free nuclear endosperm.

Identify the correct pair of statements (i) White kernel of Coconut is a free nuclear endosperm (ii) In dioecious plants, autogamy is prevented but geitonogamy occurs (iii) Cleistogamous flowers are always self pollinated (iv) Castor is an endospermic seed.

ERRORLESS -SEXUAL REPRODUCTIO IN FLOWERING PLANTS-Sexual Reproductio In Flowering Plants
  1. The gymnospermic endosperms differs form an angiospermic endosperm be...

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  2. Fusion product of polar nuclei and male gamete is

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  3. Nuclear endosperm has

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  4. Ruminate endosperm is commonly found in seeds of

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  5. Dicot embryo consists of

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  6. Tripoid plants can be obtained from culture of

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  7. The sequence of development of embryo sac is

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  8. The given figure are related to castor seeds, identify A to D respecti...

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  9. If the number of chromosomes in endosperm of a dicot plant is 36 the r...

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  10. Which of the following is a non - endospermic monocot seed

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  11. Study the given figure of a typical dicot embryo, Select the right opt...

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  12. In angiosperms endosperm is formed by

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  13. From which cells peripheral region of radicle is produced

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  14. If an angiospermic male plant is diploid and female plant tetraploid, ...

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  15. Endosperm in Angiosperm (Flowering plants) is or The endosperm of Bras...

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  16. Function of embryonal suspensor in angiosperms is to

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  17. The embryo in sunflower has

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  18. In agamospermy, the embryo sac is diploid because it is formed without...

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  19. When vegetative cell of zygote form embryo it is called

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  20. Presence of many embryos (polyembryony) is a characteristic feature of

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