Megasporophyll of gymnosperms is homologous to _______ of angiosperms.

Options

A. stamen
B. carpel
C. sepal
D. petal

Answer

To answer the question "Megasporophyll of gymnosperms is homologous to _______ of angiosperms," we can follow these steps:

### Step 1: Understand the Terms
- **Megasporophyll**: In gymnosperms, the megasporophyll is a leaf-like structure that bears megasporangia, which produce megaspores. These megaspores develop into female gametophytes.
- **Angiosperms**: These are flowering plants that produce seeds enclosed within a fruit.

### Step 2: Identify the Function of Megasporophyll
- The primary function of the megasporophyll is to facilitate the production of female gametophytes through the megasporangium. This is crucial for reproduction in gymnosperms.

### Step 3: Compare with Angiosperms
- In angiosperms, the structure that serves a similar function to the megasporophyll is the **carpel** (or pistil). The carpel is the female reproductive part of the flower, which contains the ovary, style, and stigma.

### Step 4: Analyze the Options
- The options provided are:
1. Stamen
2. Carpel
3. Sepal
4. Petal

- **Stamen**: This is the male reproductive part and does not correspond to megasporophyll.
- **Carpel**: This is the correct answer as it is homologous to the megasporophyll.
- **Sepal**: This protects the flower bud and is not related to reproduction.
- **Petal**: This attracts pollinators and is also not related to the production of female gametophytes.

### Conclusion
Thus, the megasporophyll of gymnosperms is homologous to the **carpel** of angiosperms.

### Final Answer
Megasporophyll of gymnosperms is homologous to **carpel** of angiosperms.

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