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There are ….. In embryo sac (A) 8 cell,...

There are ….. In embryo sac
(A) 8 cell, 7 nuclei
(B) 7 cells, 7 nuclei
(C) 8 cells, 8 nuclei
(D) 7 cells, 8 nuclei

A

8 cell, 7 nuclei

B

7 cells, 7 nuclei

C

8 cells, 8 nuclei

D

7 cells, 8 nuclei

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The correct Answer is:
D
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In majority angiosperms…… (A) There are filiform apparatus in egg cell (B) There are many antipodal cells in it (C) In megaspore mother cell meiotic division takes place (D) A small central cell is located in embryo sac.

In a flower, if the megaspore mother cell forms megaspores without undergoing meiosis and if one of the megaspores developos into an embryo sac, its nuclei would be (A) Haploid (B) Diploid (C) A few haploid and a few diploid (D) With varying ploidy

In a fertilised embryo sac, the haploid, diploid, and triploid sturcture are (A) Synergid, zygote and primary endosperm nucleus (B) Synergid, antipodal and polar nuclei (C) Antipodal, synergid and primary endosperm nucleus (D) Synergid, polar nuclei and zygote

A microspore mother cell forms (A) embryo sac (B) pollen Grains (C) nucellus (D) tapetum

What is the fate of the male gametes discharged in the synergid? (A) One fuses with the egg, other (s) degenerate (s) in the synergid (B) All fuse with the egg (C) One fuses with the egg. Other (s) fuse(s) with synergid nucleus (D) One fuses with the egg and other fuses with central cell nuclei

Flaccid cell means___ (A) Plasmolysed cell (B) Cell with turgidity (C) The cell in which water flows in and out of cell are in equilibrium (D) The cell kept in hypotonic solution

The arrangement of the nuclei in a normal embryo sac in the dicot plants is

How many cells or nuclei are present in mature male gametophyte of Capsella

In the figure given below label the following parts: male gametes, egg cell, polar nuclei, synergid and pollen tube

In an embryo sac, the cells that degenerate after fertilisation are (A) Synergids and primary endosperm cell (B) Synergids and antipodals (C) Antipodals and primary endosperm cell (D) Egg and antipodals

KUMAR PRAKASHAN-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Section -F (Multiple Choice Questions)
  1. The generative cell of a two-celled pollen divides in the pollen tube ...

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  2. Which is the largest nucleus in pollen grain? (A) gamete nucleus (B...

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  3. There are ….. In embryo sac (A) 8 cell, 7 nuclei (B) 7 cells, 7 nuc...

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  4. How are synergid cells in chromosomal point of view? (A) Haploid (B...

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  5. Double fertilisation is a unique characteristics of which plant? (A) ...

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  6. Generally, by fertilisation of mature egg cells, which cells possess n...

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  7. The formation of 256 pollen grains is done by how many meiotic divisio...

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  8. Which is called male reproductive organ of the following ? (A) Coroll...

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  9. Anther generally consists of…… (A) one microsporangia (B) two micro...

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  10. In a pollen grain larger irregular shaped nucleus is (A) archesporica...

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  11. A microspore mother cell forms (A) embryo sac (B) pollen Grains (...

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  12. The ovule is attached to the placenta by a small stalke which is known...

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  13. How many megaspore mother cells are produced in a Nucellus? (A) Two ...

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  14. What forms when meiotic division in an ovule takes place? (A) Archesp...

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  15. The mature embryosac has how many cells?

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  16. Transfer of pollen to the stigma of another flower of the same plant i...

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  17. Hydrophily occurs in which plant? (A) Vallisnaria (B) Maize (C) G...

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  18. Which plants among the following are pollinated by flies? (A) Yucca ...

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  19. Cleistogamy occurs in which plant? (A) Commelina (B) Yucca (C) Ma...

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  20. What is the name of the larger cell of the suspensor that remains in c...

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