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Embryo sac develops from megaspore mothe...

Embryo sac develops from megaspore mother cell through

A

two meiotic and two mitosis divisions

B

one meiotic and three mitosis divisions

C

two meitotic divisions

D

one meiosis and two mitotic divisions

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The correct Answer is:
B
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Assertion : When embryo sac develops from megaspore mother cell without meiosis it is called diplospory. Reason : Fruits are formed without seeds in diplospory

Assertion: When embryo sac develops from magaspore mother cell, it is called diplospory, Reason: In diplospory, two spores are formed.

Megaspore mother cell originates from :

Explain with the help of a diagram the development of a mature embryo sac from a megaspore mother cell in angiosperm.

Explain with the help of a diagram the development of a mature embryo sac from a megaspore mother cell in angiosperm

When a embryo sac develop from a single megaspore called monosporic development

Development of female gametophyte directly from megaspore mother cell without meiosis is called

(a ) Trace the development ofmegaspore mother cell up to the formation of a mature embryo-sac in a flower ing plant. (b) Draw a labelled diagram of the structure of mature dicot embryo.

TRUEMAN BIOLOGY-SEXUAL REPRODUCTION IN FLOWERING PLANTS-MULTIPLE CHOICE QUESTIONS
  1. Megasporophyll of Pinus is equivalent to angiospermic

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  2. What do you think is the correct sequence of the development of the e...

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  3. Embryo sac develops from megaspore mother cell through

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  4. The plant part which consists of two generations one within the other ...

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  5. Function of guiding and attracting pollen tube towards egg is done by

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  6. In flowering plants archesporium gives rise to

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  7. The number of chromosomes in leaf tip cell of plant is 6. The number ...

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  8. In angiosperms, a mature male gametophyte is formed from a pollen moth...

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  9. The filiform apparatus is present in

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  10. The haploid cell which divides by mitosis to form embryosac is

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  11. Which of the cells in the Polygonum type of embryo sac which degenera...

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  12. The number of cells in the Polygonum type of embryo sac which degener...

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  13. In 82% of angiosperm families, ovule is

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  14. Which of the following statements is/are correct ? (i) Endothecium ...

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  15. The arrangement of the nuclei in a normal embryo sac in the dicot plan...

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  16. Which one of the following is surrounded by a callose wall

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  17. Male gametes in angiosperms are formed by the division of

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  18. Increased asthmatic attacks in certain seasons are related to

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  19. Pollination occurs when a pollen grain

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  20. Anemophily is pollination through

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