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Which of the following has proved helpfu...

Which of the following has proved helpful in preserving pollen of fossils

A

Pollenkitt

B

Cellulosic intine

C

Oil content

D

Sporopollenin

Text Solution

Verified by Experts

The correct Answer is:
D
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ERRORLESS -SEXUAL REPRODUCTIO IN FLOWERING PLANTS-Sexual Reproductio In Flowering Plants
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  2. Attractants and reward are required for

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  3. Which of the following has proved helpful in preserving pollen of foss...

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  4. Pollen grains can be stored for several years in liquid nitrogen havin...

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  5. The ovary after fertilization is converted into

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  6. Micropyle of seed facilitates in the entry of:

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  7. The given figure is associated to double fertilization A, B, C, D, E, ...

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  8. when the pollen tube enters through the micropyle it is termed as

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  9. Female gametophyte of a typical dicot at the time of fertilization is

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  10. Which of the following events takes place after double fertilization

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  11. Double fertilization was discovered by

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  12. When pollen tube enters by integuments then the process is called

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  13. Double fertilization is a characteristic of

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  14. Fertilization of egg takes place inside

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  15. Which of the following floral parts forms pericarp after fertilization

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  16. Which of the following is not true for double fertilization

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  17. The nuclei of the sperm and egg fuse as a result of

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  18. Number of nuclei taking part in double fertilization is

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  19. Fusion of two dissimilar gametes is called

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  20. A pollen tube grows down the style because

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