Cell division in blue-green type is more or less similar to that in:

Options

A. Bacteria
B. Green algae
C. Brown algae
D. Red algae.

Answer

**Step-by-Step Solution:**

1. **Identify Blue-Green Algae**: Blue-green algae, also known as cyanobacteria, are a type of bacteria that can perform photosynthesis. They are classified as prokaryotes, meaning they lack a true nucleus and membrane-bound organelles.

2. **Understand Cell Division in Prokaryotes**: Prokaryotic organisms, including cyanobacteria, typically reproduce asexually through a process called binary fission. In binary fission, the cell grows, duplicates its genetic material, and then divides into two identical cells.

3. **Compare with Other Options**: The question provides several options for comparison:
- **Bacteria**: Like cyanobacteria, bacteria are also prokaryotes and reproduce via binary fission. Therefore, their cell division is very similar.
- **Green Alga**: Green algae are eukaryotic organisms, meaning they have a true nucleus and membrane-bound organelles. Their reproduction can be both asexual and sexual, which is different from the asexual reproduction in cyanobacteria.
- **Brown Alga**: Similar to green algae, brown algae are also eukaryotic and have a different mode of reproduction.
- **Red Alga**: Like green and brown algae, red algae are eukaryotic and have more complex reproductive processes.

4. **Conclusion**: Since blue-green algae (cyanobacteria) are prokaryotes and share similar characteristics with bacteria, the correct answer is that cell division in blue-green algae is more or less similar to that in bacteria.

**Final Answer**: Bacteria

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