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Assertion : Only the pre-pollination gro...

Assertion : Only the pre-pollination growth of male gametophyte occurs inside the microsporangium whereas the remaining growth occurs over the female reproductive organs.
Reason : Whole of the growth of female gametophyte occurs inside the megasporangium.

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 given assertion and reason, let's break down the information step by step. ### Step 1: Understanding the Assertion The assertion states that "Only the pre-pollination growth of male gametophyte occurs inside the microsporangium whereas the remaining growth occurs over the female reproductive organs." - **Explanation**: The male gametophyte, which is represented by pollen grains, starts its development inside the microsporangium (the pollen sac). This initial growth is termed "pre-pollination." After this stage, the pollen grains are released and transported to the stigma of the female reproductive organ, where they continue to grow and develop further. ### Step 2: Understanding the Reason The reason states that "Whole of the growth of female gametophyte occurs inside the megasporangium." - **Explanation**: The female gametophyte, also known as the embryo sac, develops entirely within the megasporangium (ovule). This process involves several stages of cell division and differentiation, ultimately resulting in the formation of the embryo sac, which is crucial for fertilization. ### Step 3: Evaluating the Assertion and Reason Now, we need to assess the truthfulness of both statements and their relationship. - **Truth of Assertion**: The assertion is true. The initial growth of the male gametophyte occurs inside the microsporangium, and subsequent growth occurs on the stigma. - **Truth of Reason**: The reason is also true. The entire development of the female gametophyte takes place inside the megasporangium. ### Step 4: Analyzing the Relationship The assertion and reason are both correct, but we need to determine if the reason is the correct explanation for the assertion. - The assertion discusses the growth of the male gametophyte, while the reason focuses on the female gametophyte. Therefore, although both statements are true, the reason does not explain the assertion. ### Conclusion Based on the analysis, the correct answer is B: Both the assertion and reason are correct, but the reason is not the correct explanation of the assertion. ---
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