The exine of the pollen grain is composed of sporopollenin, making it extremely resistant to physical and chemical breakdown, which helps in the fossilization of pollen grains and their identification.
One of the most resistant organic material- sporopollenin is present in –
Asked in Co operative Supervisor & Environment Supervisor (Group C) Exam 2023 · Topic: Plant Reproduction (Microsporogenesis and Pollen Grain Formation)
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