Amitosis usually occurs in

Options

A. eukaryotic cells
B. prokaryotic cells
C. meristems
D. spore mother cells.

Explanation

### Step-by-Step Solution:

1. **Understand the term "Amitosis":**
- Amitosis is a type of cell division that is characterized by the direct division of the nucleus without the formation of chromosomes. This process results in the formation of two daughter nuclei.

2. **Identify the characteristics of Amitosis:**
- Unlike mitosis or meiosis, amitosis does not involve the complex stages of chromosomal alignment and separation. Instead, the nucleus simply splits into two parts, each becoming a daughter nucleus.

3. **Determine where Amitosis occurs:**
- Amitosis is primarily observed in prokaryotic cells, such as bacteria. Prokaryotic cells lack a defined nucleus and do not undergo the typical mitotic processes seen in eukaryotic cells.

4. **Conclude the answer:**
- Based on the characteristics and the occurrence of amitosis, the correct answer to the question "Amitosis usually occurs in" is prokaryotic cells.

### Final Answer:
Amitosis usually occurs in prokaryotic cells.