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The role of double fertilization in angi...

The role of double fertilization in angiosperms is to produce

A

cotyledons

B

endocarp

C

endosperm

D

hormones

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Double Fertilization**: In angiosperms (flowering plants), double fertilization is a unique process where two fertilization events occur. This involves the fusion of one male gamete with the egg cell and the fusion of another male gamete with the polar nuclei. 2. **Structure of the Embryo Sac**: The embryo sac consists of several key components: - **Chalazal End**: Contains three antipodal cells. - **Middle Portion**: Contains two polar nuclei. - **Micropilar End**: Contains two synergids and one egg cell. 3. **Fertilization Events**: - The first fertilization event occurs when one male gamete (n) fuses with the egg cell (n) to form a zygote. - The second fertilization event occurs when the other male gamete (n) fuses with the polar nuclei to form the endosperm. 4. **Role of Endosperm**: The endosperm serves as a nutritive tissue that provides essential nutrients to the developing embryo. This is crucial for the growth of the zygote into a mature seed. 5. **Conclusion**: The primary role of double fertilization in angiosperms is to produce endosperm, which supports the growth of the embryo. **Final Answer**: The role of double fertilization in angiosperms is to produce **endosperm**. ---
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