Question

Pollen grain of Cycas are shed at stage [MP PMT 1984; CPMT 1990, 93]
A) One - celled
B) Two - celled
C) Three - celled
D) Four - celled

Answer 1

ANSWER
..........

THE ANSWER IS 3 CELLED

Answer 2

A pollen grain of Cycas is shed at stage three-celled.  

Option (c)

Explanation:

• The 'pollen grain' is the first part of the gametophyte. Then the microspore germinates within the 'microsporangium'. Each of the microspores divides into the 2 cells.
• In the two cells, one cell is a smaller 'prothallial cell' and the larger cell is 'antheridial cell'.
• The protheridial cell does not divide further but the antheridial cell again divides to form smaller generative cells near to the protheridial cell and the larger tube cell. So the pollination takes place in the Three celled stages.

To know more

The microsporophyll of Cycas represents a

A) Male gamete

B) Stamen

C) Pollen grain

D) Pollinium

https://brainly.in/question/2172365

Differentiate between the male gametophtye of cycas,pinus and ephedera

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