Multiple choice

Directions: Assertion and reason type: The question consists of two statements : Assertion and Reason. While answering the question you are required to choose any one of the following five responses. (A) If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion. (B) If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. (C) If Assertion is true but Reason is false. (D) If Assertion is false and Reason is true. (E) If both Assertion and Reason are false.

Assertion: Pollination occurs in Pinus with the help of wind i.e. anemophilly. Reason: The pollen grains of Pinus germinate in situ.

  1. A

  2. B

  3. C

  4. D
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The germination of pollen grains starts in situ. The first division, in all the three genera results in the formation of a small prothallial cell and a bigger cell. The bigger cell directly functions as antheridial initial in Cycas, while in Pinus and Ephedra it cuts off a second prothallial nucleus.

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