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Which of the following statements about ...

Which of the following statements about sporopollenin is incorrect ?

A

Exine is made up of sporopollenin

B

Sporopollenin is one of the resistant organic materials

C

Exine gas apertures called germ pores where sporopollenin is present

D

Sporopollenin can withstand high temperatures and strong acids.

Text Solution

Verified by Experts

The correct Answer is:
C
The germ pores are apertures in the exine layer of pollen grain where sporopollenin is absent.
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NCERT FINGERTIPS-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Sexual Reproduction In Flowering Plants
  1. How many meiotic divisions are required for the formation of 100 polle...

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  2. One of the most resistant biological material present in the exine of ...

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  3. Which of the following statements about sporopollenin is incorrect ?

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  4. What is the function of germ pore?

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  5. Read the given statements. (i) Outer exine is made up of sporopolle...

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  6. of the pollen grain divides to form two male gametes.

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  7. The three cells found in a pollen grain when it is shed at 3-celled st...

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  8. In a fully developed male gametophyte the number of nuclei is

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  9. Refer to the given figure of reproductive structure of Papaver and ide...

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  10. Megasporangium along with its protective integuments is called

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  11. A typical angiospermous ovule is attached to the placenta by means of ...

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  12. Identify the parts labelled A,B,C and D in the given figure and selec...

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  13. Match column I with column II and select the correct option from the g...

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  14. Mature ovules are classified on the basic of funiculus. If micropyle c...

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  15. When micropyle, chalaza and hilum lie in a straight line, the ovule is...

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  16. Select the correct option regarding the ploidy level of different stru...

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  17. Which of the following statements is not correct ?

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  18. The filiform apparatus is present in

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  19. Identify the parts labelled A,B,C and D in the given figure and select...

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  20. Select the correct statements (s) regarding the structure of a mature ...

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