Diameter of space between two parallel membrances of nucleus is:-

Answer

To find the diameter of the space between the two parallel membranes of the nucleus, we can follow these steps:

1. **Understand the Structure of the Nucleus**: The nucleus is a vital part of eukaryotic cells that contains genetic material. It is surrounded by a nuclear membrane, also known as the nuclear envelope.

2. **Identify the Components of the Nuclear Membrane**: The nuclear membrane consists of two concentric membranes: the outer membrane and the inner membrane. These membranes create a space between them.

3. **Define the Space Between the Membranes**: The space between the outer and inner membranes is referred to as the perinuclear space.

4. **Measure the Diameter of the Perinuclear Space**: The diameter of the perinuclear space is typically measured in nanometers. According to the information provided, this diameter ranges from 10 to 15 nanometers.

5. **Conclude the Answer**: Therefore, the diameter of the space between the two parallel membranes of the nucleus is approximately 10 to 15 nanometers.

### Final Answer:
The diameter of the space between the two parallel membranes of the nucleus is 10 to 15 nanometers.

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