An orthotropous ovule is one in which micropyle and chalaza are

Options

A. at right angles to funicle
B. Parallel to the funicle
C. in straight line of funicle
D. Parallel along with ovule

Answer

To solve the question regarding the characteristics of an orthotropous ovule, we will analyze the definitions and relationships between the micropyle, chalaza, and funicle.

### Step-by-Step Solution:

1. **Understanding Ovule Types**:
- Ovules can be classified based on the orientation of the micropyle (the opening) and chalaza (the base) in relation to the funicle (the stalk).
- The four main types of ovules are orthotropous, hemianotropous, anatrophous, and campylotropous.

2. **Defining Orthotropous Ovule**:
- In an orthotropous ovule, the micropyle, chalaza, and funicle are aligned in a straight line.
- This means that if you were to draw a line from the micropyle to the chalaza, it would pass through the funicle without any angles.

3. **Analyzing the Options**:
- **Option A**: At right angle to funicle – This describes a hemianotropous ovule, not orthotropous.
- **Option B**: Parallel to the funicle – This does not accurately describe any of the ovule types.
- **Option C**: In straight line with the funicle – This is the correct description of an orthotropous ovule.
- **Option D**: Parallel along the ovule – This does not fit the definition of any ovule type.

4. **Conclusion**:
- Based on the definitions and the analysis of the options, the correct answer is **Option C**: "In straight line with the funicle".

### Final Answer:
**Option C**: In straight line with the funicle.