Find the wrong one

Options

A. an alga with isogametes is Cladophora
B. an alga with heterogametes is Fucus
C. a monoecious alga is Chara
D. a monoecious bryophyte is Marchantia

Answer

To solve the question "Find the wrong one," we need to evaluate each of the provided options regarding their correctness in the context of reproduction in organisms.

### Step-by-Step Solution:

1. **Evaluate Option A:**
- **Statement:** An Elga with isogametes is Gladiophora.
- **Analysis:** Isogametes are gametes that are similar in shape and size. Gladiophora is indeed known to have isogametes, meaning the male and female gametes cannot be distinguished.
- **Conclusion:** This statement is **true**.

2. **Evaluate Option B:**
- **Statement:** An Elga with heterogametes is Fucus.
- **Analysis:** Heterogametes refer to gametes that are different in shape and size, allowing for the identification of male and female gametes. Fucus, a type of brown algae, does have distinct male and female gametes.
- **Conclusion:** This statement is **true**.

3. **Evaluate Option C:**
- **Statement:** A Monoaceous Elga is Chara.
- **Analysis:** Monoecious organisms bear both male and female reproductive organs. Chara is indeed a monoecious alga, having both types of reproductive structures.
- **Conclusion:** This statement is **true**.

4. **Evaluate Option D:**
- **Statement:** Markentia is a monoecious bryophyte.
- **Analysis:** Markentia is actually a dioecious bryophyte, meaning it has separate male and female plants. The male reproductive structure is called an antheridiophore, and the female structure is called an archegoniophore.
- **Conclusion:** This statement is **false**.

5. **Final Conclusion:**
- Since option D is incorrect, the answer to the question "Find the wrong one" is **option D**.