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Even after killing the generative cell w...

Even after killing the generative cell with a laser beam, the pollen grain of a flowering plant germinates and produces normal pollen tube because

A

Laser beam stimulates pollen germination and pollen tube growth

B

Laser beam does not damage the region from which pollen tube emerges

C

The contents of the killed generative cell permit germination and pollen growth

D

The vegetative cell has not been damaged

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • Diameter of Pollen grain in flowering plant is

    A
    25–50 micrometers
    B
    50–75 micrometers
    C
    75–100 micrometers
    D
    100–150 micrometers

  • The generative cell of a pollen grain

    A
    Is small and floats in the cytoplasm of vegetative cell
    B
    Is spindle shaped
    C
    Has dense cytoplasm and a nucleus.
    D
    All of the above

  • In majority of the flowering plants, entry of pollen tube in ovule is

    A
    Porogamy
    B
    Chalazogamy
    C
    Mesogamy
    D
    Basogamy

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