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Assertion (A) : Microspores are the firs...

Assertion (A) : Microspores are the first cell of male gametophyte.
Reason (R) : Microspores undergo development and forms pollen grains.

A

A is correct R is incorrect

B

R explains A

C

Both A and R are incorrect

D

Both A and R are correct . R does not explain R.

Text Solution

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The correct Answer is:
B
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FULL MARKS-ASEXUAL AND SEXUAL REPRODUCTION IN PLANTS-Additional Questions (1- Mark Questios)
  1. Identify the mismatched pair : {:("i. Sucker","- Chrysanthemum"),("i...

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  2. Assertion (A) : Epidermis is protective in function . Reason (R) : E...

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  3. Assertion (A) : Microspores are the first cell of male gametophyte. ...

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  4. Assertion (A) : Carica papaya is a dioecious plant. Reason (R) : Bot...

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  5. Assertion (A) : Anemophilous pollination occurs by animals. Reason (...

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  6. Assertion (A) : Fusion of male and female gametes results in zygotes. ...

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  7. Assertion (A) : Zea mays is monocotylednous plant. Reason (R) : Shie...

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  8. Assertion (A) : In Bryophyllum, vegetative propagation , occurs throug...

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  9. Assertion (A) : Androecium and Gynoecium are essential whorls of flowe...

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  10. Identify the correct statement from the following:

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  11. Statement 1 : Flower is a highly condensed shoot for reproductive purp...

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  12. Identify the incorrect statement

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  13. Cleavage polyembryony is noticed in ...........

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  14. Pick out the non - spermous seed

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  15. The type of endosperm noticed in Hydrilla a seed is ............

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  16. Which is not a part of mature seed ?

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  17. Select the wrong statement (s) regarding cross pollination (a) Polli...

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  18. Which of the following characters does not exist in Ornithophilous flo...

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  19. Which of the following plant was introduced as a contaminant into Indi...

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  20. ............is a carotenoid derivative of exine layer which provides r...

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