Gametophytic and spo rophytic generations seen in life history of:

Options

A. fungi
B. algae
C. ferns
D. diatoms

Answer

**Step-by-Step Solution:**

1. **Understanding Generations**: In the life cycle of plants and some other organisms, there are two main generations: the gametophytic generation and the sporophytic generation. The gametophyte is typically haploid (N), meaning it has one set of chromosomes, while the sporophyte is diploid (2N), meaning it has two sets of chromosomes.

2. **Identifying Organisms**: The question asks about the presence of both gametophytic and sporophytic generations in the life history of certain organisms. We need to analyze different groups of organisms to find the correct answer.

3. **Analyzing Fungi**: In fungi, both gametophyte and sporophyte generations are present. The gametophyte produces gametes (haploid), while the sporophyte represents the vegetative (diploid) stage. This indicates that fungi exhibit both generations.

4. **Analyzing Algae**: Algae typically have a haplontic life cycle, which means they primarily exist in the gametophytic stage (haploid). Therefore, they do not exhibit a sporophytic generation prominently.

5. **Conclusion**: Based on the analysis, fungi are the organisms that show both gametophytic and sporophytic generations in their life cycle. Thus, the correct answer to the question is fungi.

**Final Answer**: Fungi exhibit both gametophytic and sporophytic generations in their life history.

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