In flowering plants, double fertilization involes

Options

A. Fertilization of egg cell and central cell by two male gametes brought by same pollen tube
B. Fertilization of egg cell by two male gametes
C. Fertilization of egg cell and central cell by two male gametes brought by different pollen tubes
D. Fertilization of two egg cells by two male gametes brought by same pollen tube.

Answer

**Step-by-Step Solution:**

1. **Understanding Double Fertilization**: Double fertilization is a unique process that occurs in flowering plants (angiosperms). It involves two distinct fertilization events that occur simultaneously.

2. **Identifying the Gametes**: In double fertilization, two male gametes (sperms) are involved. These gametes are delivered to the ovule through the pollen tube.

3. **First Fertilization Event (Syngamy)**: One of the male gametes fuses with the egg cell (female gamete). This fusion results in the formation of a diploid zygote, which will develop into the embryo.

4. **Second Fertilization Event (Triple Fusion)**: The second male gamete fuses with the two polar nuclei present in the central cell of the ovule. This fusion creates a triploid primary endosperm nucleus, which will develop into the endosperm, providing nourishment to the developing embryo.

5. **Conclusion**: Therefore, double fertilization in flowering plants involves the fertilization of the egg cell and the central cell by two male gametes brought by the same pollen tube.

**Final Answer**: The correct option is: "Fertilization of egg cell and central cell by 2 male gametes brought by the same pollen tube."

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