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Assertion a. Life cycle of Funaria is ca...

Assertion a. Life cycle of Funaria is called diplohaplontic.
Reason r. In Funaria there is alternation of haploid gametophytic and diploid sporophytic phases, one becoming parent to other.
The correct answer is

A

Both a and r are true and r is correct explanantion of a

B

Both a and r are correct but r is not the correct explanation of a

C

A is true but R is false

D

A is false but R is true.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the assertion and reason question regarding the life cycle of Funaria, we can break it down into the following steps: ### Step 1: Understand the Assertion The assertion states that the life cycle of Funaria is called diplohaplontic. **Explanation:** Funaria is a genus of mosses, which are classified under bryophytes. In bryophytes, the life cycle is characterized by the presence of both haploid (gametophyte) and diploid (sporophyte) stages. The term "diplohaplontic" indicates that both stages are significant in the life cycle. ### Step 2: Understand the Reason The reason states that in Funaria, there is an alternation of haploid gametophytic and diploid sporophytic phases, with one becoming the parent to the other. **Explanation:** In the life cycle of Funaria, the gametophyte (haploid) stage is the dominant phase, while the sporophyte (diploid) stage is dependent on the gametophyte for nourishment. This alternation of generations is a key feature of the diplohaplontic life cycle, where the two phases alternate, with the gametophyte producing gametes and the sporophyte producing spores. ### Step 3: Evaluate the Assertion and Reason Both the assertion and reason are correct. The assertion correctly identifies the life cycle of Funaria as diplohaplontic, and the reason accurately describes the alternation of generations in this life cycle. ### Step 4: Conclusion Since both the assertion and the reason are true, and the reason provides a correct explanation for the assertion, the correct answer is: **Option 1: Both assertion and reason are true, and the reason is the correct explanation of the assertion.** ---
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