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Which one of the following statements is...

Which one of the following statements is not true?
(a) Stored pollen in liquid nitrogen can be used in the crop breeding programme
(b) Tapetum helps in dehiscence of anthers
(c) Exine of pollen grains is made of sporopollenin
(d) Pollen grains of many species cause severe allergies

A

Stored pollen in liquid nitrogen can be used in the crop breeding programme

B

Tapetum helps in dehiscence of anthers

C

Exine of pollen grains is made of sporopollenin

D

Pollen grains of many species cause severe allergies.

Text Solution

Verified by Experts

The correct Answer is:
B
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DINESH PUBLICATION ENGLISH-NO IDEA-Brain Teasers
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  3. A plant in which fertilization occurs after the shedding of seed is

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  4. In ovule, exostome is

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  5. Group of specialized thickened nucellar cells between embryo sac and c...

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  6. Hypostase is meant for providing

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  7. A group of specialised nucellar cells between embryo sac and micropyle...

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  8. Sasa paniculata contains a large number of antipodal cells. The number...

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  9. Antipodal cells enlarge tremendously in (a) Sasa (b) Caltha (c) Ac...

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  10. Which one develops from funicle of base of ovule? (a) Sarcotesta (b) ...

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  11. Which one develops from exostome

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  12. In tenuinucellate ovules, the nucellus may break down. The nourishment...

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  13. Endothelium develops from (a) Nucellus (b) Nucellus surrounding embr...

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  14. Middle layers of pollen sac wall are absent in

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  15. Growth of pollen tube is

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  16. The apical growing region of pollen tube is called

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  17. Functional part of pollen tube is separated from the rest by

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  18. Pollen tube cytoplasm is like any other living cell in showing (a) Cal...

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  19. Male nucleus fuses with female nucleus during fertilization in Angiosp...

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  20. Which one is true of male gamete of angiosperms

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  21. Heterofertilization is

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