A : Different plant groups show different patterns of life cycles.
R : During life cycle there is alternation of genration between diploid gametophyte and haploid sporophyte.

Options

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.

Answer

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

### Step 1: Analyze the Assertion
The assertion states: "Different plant groups show different patterns of life cycles."

- This statement is **true**. Various plant groups exhibit distinct life cycle patterns, which can be categorized into different types based on the dominance of either the gametophyte or sporophyte stages.

### Step 2: Analyze the Reason
The reason states: "During life cycle there is alternation of generation between diploid gametophyte and haploid sporophyte."

- This statement is **false**. The correct relationship is that the gametophyte is **haploid** (1n) and the sporophyte is **diploid** (2n). The alternation of generations refers to the transition between these two stages, but the reason incorrectly states that the gametophyte is diploid.

### Step 3: Conclusion
Based on the analysis:
- The assertion is **true**.
- The reason is **false**.

Thus, the correct answer is that the assertion is true, but the reason is false.

### Final Answer
Assertion (A) is true, and Reason (R) is false.

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