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A : Sexual reproduction shows considerab...

A : Sexual reproduction shows considerable variation in the type and formation of sex cells in members of chlorophyceae.
R : It may be isogamous, anisogamous and oogamous.

A

If the Assertion & Reason are true and the reason is the correct. Explanation of the assertion.

B

If 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.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze the two statements provided: ### Step-by-Step Solution: 1. **Understanding the Assertion (A)**: - The assertion states that "sexual reproduction shows considerable variation in the type and formation of sex cells in members of Chlorophyceae." - Chlorophyceae refers to a class of green algae, which indeed exhibit diverse reproductive strategies. 2. **Understanding the Reason (R)**: - The reason states that "it may be isogamous, anisogamous, and oogamous." - This refers to the different types of gamete formation in sexual reproduction: - **Isogamous**: Gametes are similar in size and shape (e.g., Eulothrix, Spirogyra). - **Anisogamous**: Gametes are dissimilar in size (e.g., Eudorina). - **Oogamous**: Involves a large non-motile female gamete and a small motile male gamete (e.g., Volvox, Fucus). 3. **Evaluating the Truth of the Statements**: - Both the assertion and reason are true. The assertion correctly describes the variation in sexual reproduction among Chlorophyceae, and the reason accurately lists the types of gametes involved. 4. **Determining the Relationship**: - The reason (R) explains the assertion (A) by providing examples of the types of sexual reproduction that lead to the variation mentioned in the assertion. 5. **Conclusion**: - Since both the assertion and reason are true, and the reason correctly explains the assertion, the answer is that both statements are true, and the reason is the correct explanation of the assertion. ### Final Answer: - The correct answer is: **Both assertion and reason are true, and the reason is the correct explanation of the assertion.** ---
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