Home
Class 12
BIOLOGY
At which cellular stage , does the polle...

At which cellular stage , does the pollen grains are usually liberated from anther ? What happens to the generative cell if the pollen reaches the stigma ?

Text Solution

Verified by Experts

In general , the pollen grains are liberated at 2- celled stage . On reaching the stigma at this stage , the generative cell divides meiotically and form two male gametes (male cells)
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SAMPLE PAPER -17

    FULL MARKS|Exercise BOTANY (PART - III)|5 Videos

  • SAMPLE PAPER -17

    FULL MARKS|Exercise BOTANY (PART - IV )|4 Videos

  • SAMPLE PAPER -17

    FULL MARKS|Exercise ZOOLOGY (PART - IV )|4 Videos

  • SAMPLE PAPER -03

    FULL MARKS|Exercise BIO-ZOOLOGY ( PART -IV)|2 Videos

  • SAMPLE PAPER -20 (MOCK TEST PAPER) (UNSOLVED)

    FULL MARKS|Exercise BIO-ZOOLOGY (PART-IV)|4 Videos

Similar Questions

Explore conceptually related problems

At which cellular stage , does the pollen grains are usually liberated from the anther

which cell develops into pollen grain? Where it develops?

Knowledge Check

  • Generally the pollen grains are liberated from anther at ........

    A
    2- celled stage
    B
    4- celled stage
    C
    6- celled stage
    D
    8- celled stage

  • what type of cell division is seen in generative cell of pollen to form sperms.

    A
    binary fission
    B
    mitosis
    C
    meiosis
    D
    fragmentation

    • Similar Questions

    Explore conceptually related problems

    In which stage are the pollen liberated from the anther ……………… .

    Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called

    Read the given statements. (i) Outer exine is made up of sporopollenin. (ii) Inner intine is pecto-cellulosic in nature (iii) Generative cell is bigger and contains abundant food reserve (iv) Vegetative cell is small and floats in the cytoplasm of the generative cell. Which of the given statements are not true regarding structure of pollen grain?

    An anther has 1200 pollen grains. How many pollen mother cells must have been there to produce them ? Explain.

    imagine the structure of pollen grain of a sweet scented small flower and the structure of ovule . From the appearance of the pollen grain . (a) Identify the agent of pollination . (b) During fertilization what will be the contribution of the pollen grain in the female gametophyte ?

    What is the process by which pollen grain develops? Explain the process.

    Home
    Profile