Indicate the correct statement pretaining to Taenia

Options

A. Only anterior proglottids contain male organs, wherease gravid proglottids contain uterus filled with eggs
B. Male organs are confined to posterior proglittids
C. All proglottids contain both male and female organs
D. Female organs are confined to anterior proglottids

Answer

To answer the question regarding the correct statement pertaining to Taenia, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Taenia**: Taenia is a genus of tapeworms that are parasitic in livestock. The two main species are Taenia solium (found in pork) and Taenia saginata (found in beef). They cause a disease in humans known as Taeniasis.

2. **Identify Body Structure**: The body of Taenia is ribbon-like and segmented into parts called proglottids. These proglottids can be immature or mature, depending on whether they contain sexual organs.

3. **Examine Proglottids**:
- **Anterior Proglottids**: These contain male reproductive organs, including the sperm duct and testes.
- **Mature Proglottids**: These contain both male and female reproductive organs, with a common genital pore.
- **Gravid Proglottids**: These are mature proglottids filled with a uterus containing fertilized eggs.

4. **Analyze the Options**:
- **Option 1**: "Only anterior proglottids contain male organs, whereas gravid proglottids contain uterus filled with eggs." This statement is correct.
- **Option 2**: "Male organs are confined to posterior proglottids." This is incorrect, as male organs are found in anterior proglottids.
- **Option 3**: "All proglottids contain both male and female organs." This is incorrect, as immature proglottids do not contain sexual organs.
- **Option 4**: "Female organs are confined to anterior proglottids." This is incorrect, as female organs are located in the posterior proglottids.

5. **Conclusion**: The correct statement is Option 1: "Only anterior proglottids contain male organs, whereas gravid proglottids contain uterus filled with eggs."