Amitosis is

Options

A. Division involving forming of chromosome bridges
B. Division involving spindle formation
C. Division in which the chromosomes are unequally distributed
D. Cleavage of nucleus without recognizable chromosome distribution

Answer

**Step-by-Step Solution:**

1. **Understanding Amitosis**: Amitosis is a form of cell division that is distinct from the more commonly known processes of mitosis and meiosis. It is often referred to as direct cell division.

2. **Characteristics of Amitosis**: Unlike mitosis, which involves several stages (prophase, metaphase, anaphase, and telophase), amitosis does not have these recognizable phases. This means that the process is simpler and more direct.

3. **Occurrence of Amitosis**: Amitosis is typically observed in lower organisms, such as prokaryotes (like bacteria) and certain unicellular eukaryotes (like amoeba and paramecium).

4. **Key Feature of Amitosis**: The most significant characteristic of amitosis is that it involves the cleavage of the nucleus without a recognizable distribution of chromosomes. This means that the chromosomes do not align or separate in the organized manner seen in mitosis.

5. **Conclusion**: Based on the characteristics and definition of amitosis, the correct answer to the question "Amitosis is" would be "cleavage of nucleus without recognizable chromosome distribution."

**Final Answer**: Amitosis is the cleavage of nucleus without recognizable chromosome distribution.

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