Oblique binary fission is present in

Options

A. Euglena
B. Paramecium
C. Ceratium
D. Diatom

Answer

**Step-by-Step Solution:**

1. **Understand the Concept of Oblique Binary Fission:**
- Oblique binary fission is a type of asexual reproduction where a single organism divides into two daughter cells along an oblique plane, rather than symmetrically.

2. **Identify the Organisms in the Options:**
- The options provided are Euglena, Paramecium, Ciliates (likely referring to Cretaceous or Ciliates), and Diatoms.

3. **Analyze Each Organism:**
- **Euglena:** This organism reproduces primarily through longitudinal binary fission, not oblique.
- **Paramecium:** This organism also reproduces through binary fission, but it is typically symmetrical.
- **Diatoms:** These are a type of algae that reproduce through a process called asexual reproduction, but not specifically oblique binary fission.
- **Ciliates:** Ciliates, such as those in the genus Cretaceous, are known to exhibit oblique binary fission.

4. **Conclusion:**
- Based on the analysis, oblique binary fission is specifically present in Ciliates (Cretaceous).

**Final Answer:**
Oblique binary fission is present in Ciliates (Cretaceous).

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