The primitive condition of the cyclostomate is indicated by their

Options

A. asexual reproduction
B. jawless mouth
C. possession of scales
D. toothless jaws

Explanation

To solve the question regarding the primitive condition of cyclostomates, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding Cyclostomata**:
- Cyclostomata refers to a group of jawless fish, which includes species like lampreys and hagfish. Their primitive characteristics are significant in understanding their evolutionary position.

2. **Evaluating the Options**:
- **Option 1: Asexual Reproduction**:
- Cyclostomates primarily reproduce sexually, not asexually. Therefore, this option is incorrect.

- **Option 2: Jawless Mouth**:
- Cyclostomates are characterized by their jawless mouths. This is a defining feature of the group, indicating a primitive condition. Thus, this option is correct.

- **Option 3: Presence of Scales**:
- Cyclostomates do not have scales; instead, they have smooth skin. Therefore, this option is incorrect.

- **Option 4: Toothless Jaws**:
- While cyclostomates do not have true jaws, they do have structures that can be considered as oral adaptations (like teeth in the case of lampreys). However, the term "toothless jaws" can be misleading. Since they lack true jaws, this option is also considered incorrect.

3. **Conclusion**:
- The only correct characteristic that indicates the primitive condition of cyclostomates is the presence of a jawless mouth.

### Final Answer:
The primitive condition of the cyclostomate is indicated by their **jawless mouth**.