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Even after killing the generative cell with a laser beam, the pollen grain of tobacco germinates and issues a normal pollen tube, because:
Even after killing the generative cell with a laser beam, the pollen grain of tobacco germinates and issues a normal pollen tube, because:
Updated On: Jun 7, 2022
- the vegetative cell takes over the function of the killed generative cell
- laser beam stimulates pollen germination
- the contents of the killed generative cell stimulate pollen germination and the pollen tube growth
- laser beam effect the locus-specific
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The Correct Option is D
Solution and Explanation
Laser beam affects the locus- specific orgene mutation in which change in some specific genes takes place.
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Concepts Used:
Sexual Reproduction in Flowering Plants
Sexual reproduction in flowering plants takes place or happens when the production of a new organism occurs from two parents by making use of their gametes or sex cells. Both sexual and asexual reproduction can be found in plants. Nearly all flowering plants reproduce sexually. Flowers play a captious role in the process as it carries both the male and female reproductive parts commonly known as androecium and gynoecium respectively.
An individual flower comprises the following parts -
- Pedicle
- Calyx
- Petals
- Sepals
- Stamen
- Pistil
- Receptacle
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