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Assertion : Endosperm is a nutritive tis...

Assertion : Endosperm is a nutritive tissue and it is triploid
Reason : Endosperm is formed by fusion of secondary nucleus to second male gamete. It is used by developing embryo for nutrition.

A

Assertion is correct, reason is correct, reason is a correct explanation for assertion.

B

Assertion is correct, reason is correct, reason is not a correct explanation for assertion

C

Assertion is correct, reason is incorrect

D

Assertion is incorrect, reason is correct.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we will analyze both the assertion and the reason provided. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that "Endosperm is a nutritive tissue and it is triploid." - **Explanation**: Endosperm is indeed a tissue that provides nutrition to the developing embryo in seed plants. It is triploid (3n) because it is formed from the fusion of one male gamete with the two polar nuclei of the central cell during the process of double fertilization. 2. **Understanding the Reason**: - The reason states that "Endosperm is formed by fusion of the secondary nucleus to the second male gamete. It is used by the developing embryo for nutrition." - **Explanation**: This statement is accurate. The endosperm is formed through a process called triple fusion, where the second male gamete fuses with the diploid secondary nucleus (formed by the fusion of two polar nuclei). This results in the formation of a triploid primary endosperm cell, which develops into the endosperm tissue that nourishes the embryo. 3. **Evaluating the Relationship**: - Both the assertion and the reason are true. - The reason correctly explains how the endosperm is formed and its role in providing nutrition to the embryo, thus supporting the assertion. 4. **Conclusion**: - Since both the assertion and the reason are true, and the reason correctly explains the assertion, we can conclude that the correct answer is that both statements are true and the reason is the correct explanation of the assertion. ### Final Answer: Both the assertion and the reason are true, and the reason is the correct explanation of the assertion. ---
To solve the question, we will analyze both the assertion and the reason provided. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that "Endosperm is a nutritive tissue and it is triploid." - **Explanation**: Endosperm is indeed a tissue that provides nutrition to the developing embryo in seed plants. It is triploid (3n) because it is formed from the fusion of one male gamete with the two polar nuclei of the central cell during the process of double fertilization. ...
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