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Pollen tube is covered by (a) Exine only...

Pollen tube is covered by
(a) Exine only
(b) Plasmalemma only
(c) intine only
(d) Exine and intine

A

Exine only

B

Plasmalemma only

C

intine only

D

Exine and intine.

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DINESH PUBLICATION ENGLISH-NO IDEA-Check Your Grasp
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  2. Which one produces callose for breaking plasmodesmal connections among...

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  3. Endothecial cells of anther has fibrous thickenings of (a) Suberin (...

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  4. Discontinuous layers in the wall of pollen grain are

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  5. Pollen tube is covered by (a) Exine only (b) Plasmalemma only (c) ...

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  6. In molva/Althaea a single pollen grain produces pollen tube

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  7. An indehiscent integumented megasporan- gium is found in

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  8. In ovule, cuticle is present over (a) Outer part of integument (b) Ou...

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  9. A diploid structure present in the embryo sac is

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  10. Type of ovule present in Opuntia is

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  12. Siphonogamy was discovered by

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  13. In dicot embryo hypophysis is

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  14. Embryo without plumule, radicle and cotyledon is formed in (a) Orchids...

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  15. In angiosperm, polyembryony was first reported by: (a) Leeuwenhoek (b...

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  16. First scientist to study development of angiosperm embryo was (a) Str...

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  17. In Areca, the endosperm is (a) Soft and ruminate (b) Fleshy and rum...

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  18. Xenia was discovered by (a) Swingle (b) Focke (c) Guignard (d) A...

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  19. the smallest pollen grain occurs in

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  20. Amongst angiosperms, double fertilization/triple fusion is absent in

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