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In angiosperms, microsporogenesis, megas...

In angiosperms, microsporogenesis, megasporogenesis
(A) Occur in anther
(B) Produce gametes without further dividing
(C) Meiosis is associated in it
(D) Occurs in ovule

A

Occur in anther

B

Produce gametes without further dividing

C

Meiosis is associated in it

D

Occurs in ovule

Text Solution

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The correct Answer is:
C
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During microsporogenesis, meiosis occurs in (A) Endothecium (B) Microspore mother cells (C) Microspore tetrads (D) Pollen grains

Differentiate between microsporogenesis and megasporogenesis. Which type of cell division occurs during these events? Name the structure formed at the end of these two events

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

A haploid parent produces gametes by (A) meiotic division (B) mitotic division (C) first mitotic and then meiotic (D) first meiotic and then mitotic

In angiosperms how many microspore mother cells are required to produce 100 pollen grains? (A) 25 (B) 50 (C) 75 (D) 100

Male gametophyte of angiosperm is…. (A) anther lobe (B) pollen before germination (C) pollen after germination (D) embryosac

Mitosis results in producing two cells which are similar to each other. What would be the consequence if each of the following irregularities occur during mitosis? (a) Nuclear membrane fails to disintegrate (b) Duplication of DNA does not occur (c) Centromeres do not divide (d) Cytokinesis does not occur

In angiosperm the resultant of secondary nucleus with male gamete has…..nature (A) haploid (B) Diploid (C) Triploid (D) Tetraploid

Pollination is best defined as (A) The transference of pollens from anthers to stigma (B) The germination of pollen grains (C) visiting on flowers by ants (D) the growth of pollen tube in the ovule

Azolla is used as biofertilizer because it. (A) multiplies very fast to produce massive biomass (B) has association of nitrogen fixing rhizobium (C) has association of nitrogen - fixing cyanobacteria. (D) has association of mycorrhiza.

KUMAR PRAKASHAN-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Section -F (Multiple Choice Questions)
  1. Define:- Geitonogamy

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  2. What is indicated by coconut water obtained from fresh green coconut?

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  3. In angiosperms, microsporogenesis, megasporogenesis (A) Occur in anth...

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  4. Filiform apparatus is a characteristic feature of

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  5. Which of the following is parthenocarpic fruit?

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  6. In the seed of wheat, an embryo possesses large drum shaped cotyledon....

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  7. What is produced by male gametophyte in angiosperms?

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  8. The ovule of angiosperm equals to what?

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  9. By which agents is pollination carried out in Eichhornia and Lotus? (...

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  10. In majority angiosperms…… (A) There are filiform apparatus in egg cel...

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  11. Which of the following statement is not true? (A) Insects which consu...

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  12. By what name is cotyledon of maize seed is known ?

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  13. The front end of filament is connected to what?

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  14. Which process is associated in seed formation without fertilisation in...

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  15. Which of the following is not correct? (A) outer layer of pollen gra...

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

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  17. Functional megaspore develops into…. In gymnosperms (A) Ovule (B) E...

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  18. A dioecious flowering plant prevents both ….. (A) Self fertilisation ...

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  19. Attractants and rewards are required for (A) anemophily (B) entomop...

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  20. Pollen grains can be stored for several years in liquid nitrogen havin...

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