Assertion : Embryogenesis is the development of embryo from the zygote.
Reason : Cell division increase the number of cells in the developing embryo.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Assertion**: The assertion states that "Embryogenesis is the development of embryo from the zygote." This is a true statement. Embryogenesis is indeed the process that begins after fertilization when the zygote (the fertilized egg) develops into an embryo.

2. **Understanding the Reason**: The reason given is "Cell division increases the number of cells in the developing embryo." This statement is also true. During embryogenesis, the zygote undergoes multiple rounds of cell division (mitosis), leading to an increase in the number of cells as the embryo develops.

3. **Analyzing the Relationship**: While both the assertion and the reason are true, we need to determine if the reason provided is the correct explanation for the assertion. The assertion describes the overall process of embryogenesis, while the reason focuses specifically on one aspect of that process (cell division).

4. **Conclusion**: Since both statements are true but the reason does not directly explain the assertion (it is just one part of the broader process of embryogenesis), we conclude that the correct answer is:
- Both assertion and reason are true, but the reason is not the correct explanation of the assertion.

**Final Answer**: B - Both assertion and reason are true, but the reason is not the correct explanation of assertion.

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