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In a flowering plant, archesporium gives...

In a flowering plant, archesporium gives rise to

A

Only the wall of the sporangium

B

Both wall and the sporogenous cells

C

Wall and the tapetum

D

Only tapetum and sporogenous cells

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ALLEN-REPRODUCTION IN ORGANISMS AND SEXUAL REPRODUCTION IN FLOWERING PLANTS-EXERCISE-III (B) (ANALYTICAL QUESTION )
  1. If the nucellus cell of an Angiosperm contains 24 chromosomes the numb...

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  2. In Angiosperm, if haploid number of chromosome is 12 then what will be...

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  3. How many meiotic divisions are required for the formation of 200 seed...

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  4. In Angiosperm, if number of chromosomes in endosperm is 30, what will ...

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  5. How many meiotic division are required to form 100 zygotes in family C...

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  6. How many meiotic divisions are necessary for formation of 100 function...

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  7. The seeds of which type of plant have no dormancy

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  8. Cotyledons absent in seed of

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  9. The viability of seeds can be ascertained with the help of

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  10. Ornithophily takes place in :

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  11. Anemophily type of pollination is found in

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  12. In grasses what happens in micro spore mother cell for the formation o...

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  13. In a flowering plant, archesporium gives rise to

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  14. A diploid female plant and a tetraploid male plant are crossed. The pl...

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  15. Parthenogenesis occurs in

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  16. Anther culture yields some haploid and diploid plants. Diploid plants ...

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  17. Double fertilization is essential for formation of

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  18. In which one pair, both the plants can be vegetatively propagated by l...

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  19. In a type of apomixids known as adventive embryony embryos develop dir...

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  20. Double fertilisation involves

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