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Pollen tube is a part of...

Pollen tube is a part of

A

Male gamete

B

Female gamete

C

Embryosac

D

None of these

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TRUEMAN BIOLOGY-Plant Morphology & Reproduction -ASSERTION AND REASON
  1. [A] : Synergids play an important role in directing the pollen tube gr...

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  2. Assertion. In apomixis , plants of new genetic sequence are produced. ...

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  3. Pollen tube is a part of

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  4. [A]: Incompatibility is a gene physiological process. [R]: Moderate...

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  5. [A]: The pollen sterility has been attributed to the malfunctioning of...

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  6. [A]: The three cells of the egg apparatus are arranged in a triangular...

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  7. [A]: Pollen grains from male parent are mostly transferred to the stig...

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  8. [A]: The two sperms cells in a pollen tube often change their shape. ...

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  9. [A] : Synandrous condition is found in curcurbits. [R] : The male fl...

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  10. [A]: In certain plants the stem that twins around the support is hard ...

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  11. [A]: Leaf in Daucus carota is decompound. [R]: Saprophytic and paras...

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  12. [A]: The colour of flowers in Bougainvillia is due to the coloured bra...

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  13. [A]: The endosperm contains the triploid number of chromosomes. [R]:...

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  14. [A]: Spore mother cells within the anther pollen sacs form four haploi...

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  15. [A]: One diploid embryo sac mother cell develops within the nucellus o...

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  16. [A]: Triple fusion results in veg~tative fertiliza- tion of angiosperm...

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  17. [A]: Pollination is essential for fertilization. [R]: Abscission or...

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  18. [A]: The biennial plants live for two years. [R]: They flower in bo...

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  19. Assertion : Many visitors to the hills suffer from skin and respirator...

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  20. [A]: Endosperm is tripolid in angiosperms. [R]: In gymnosperms, it ...

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