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Assertion : During embryo development in...

Assertion : During embryo development in dicots, suspensor serves as the main nutritive tissue for the embryo.
Reason : The last cell of the suspensor at the end adjacent to the embryo is known as haustorium.

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

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the assertion and reason provided in the question, we can break it down step by step. ### Step 1: Understanding the Assertion The assertion states that during embryo development in dicots, the suspensor serves as the main nutritive tissue for the embryo. - **Explanation**: In dicotyledonous plants, the suspensor is a structure that connects the developing embryo to the surrounding tissues. It plays a crucial role in anchoring the embryo and facilitating nutrient transfer from the parent plant to the embryo. However, it is not the main nutritive tissue; that role is primarily fulfilled by the endosperm. ### Step 2: Understanding the Reason The reason states that the last cell of the suspensor at the end adjacent to the embryo is known as the haustorium. - **Explanation**: The haustorium is indeed a specialized structure that develops from the suspensor. It is responsible for nutrient absorption from the surrounding tissues. However, it is not accurate to say that the suspensor as a whole serves as the main nutritive tissue for the embryo. ### Step 3: Evaluating the Assertion and Reason Now we need to evaluate the truth of both the assertion and the reason. - The assertion is **false** because the suspensor does not serve as the main nutritive tissue; the endosperm does. - The reason is **true** as the last cell of the suspensor is indeed referred to as the haustorium. ### Conclusion Since the assertion is false and the reason is true, we can conclude that the correct answer is that both the assertion and reason are not correct together. ### Final Answer Both the assertion and reason are false. ---
To analyze the assertion and reason provided in the question, we can break it down step by step. ### Step 1: Understanding the Assertion The assertion states that during embryo development in dicots, the suspensor serves as the main nutritive tissue for the embryo. - **Explanation**: In dicotyledonous plants, the suspensor is a structure that connects the developing embryo to the surrounding tissues. It plays a crucial role in anchoring the embryo and facilitating nutrient transfer from the parent plant to the embryo. However, it is not the main nutritive tissue; that role is primarily fulfilled by the endosperm. ### Step 2: Understanding the Reason ...
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