CBSE Class 12 Biology Chapter 1
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CBSE Class 12 Biology Chapter 1
Stamens have bilobed anthers containing microsporangia. Within these, sporogenous cells undergo meiosis to form pollen grains. Pollen grains have a durable exine layer and germ pores, ensuring survival during dispersal. Their two- or three-celled structure (vegetative and generative cells) is critical for fertilization.
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