A. Development of embryo from the zygote is known as embryogenesis
R. Embryogenesis involves cell division and cell differentiation.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion
B. It both Assertion & Reason are true but the reason is not the correct explanation of the assertion
C. If Assertion is true statement but Reason is false
D. If both Assertion and Reason are false statements

Answer

To solve the assertion and reason question, we will analyze both statements step by step.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "the development of embryo from the zygote is known as embryogenesis."
- This is true because embryogenesis is defined as the process through which a zygote develops into an embryo.

2. **Understanding the Reason**:
- The reason states that "embryogenesis involves cell division and cell differentiation."
- This is also true. During embryogenesis, the zygote undergoes cell division (mitosis) to increase the number of cells, and then these cells differentiate to form specialized tissues and organs.

3. **Analyzing the Relationship**:
- While both statements are true, we need to determine if the reason provides a correct explanation for the assertion.
- The assertion describes what embryogenesis is, while the reason describes processes that occur during embryogenesis. However, the reason does not explain why the development from zygote to embryo is called embryogenesis.

4. **Conclusion**:
- Since both statements are true but the reason does not correctly explain the assertion, the correct answer is that both statements are true, but the reason is not the correct explanation of the assertion.

### Final Answer:
Both the assertion and reason are true, but the reason is not the correct explanation of the assertion. Therefore, the answer is option B.

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