There is a restriction endonuclease called EcoRI. What does 'co' part in it stand for?

Options

A. coli
B. colon
C. coelom
D. co-enzyme

Answer

To answer the question about what the 'co' part in the restriction endonuclease EcoRI stands for, we can follow these steps:

1. **Identify the full name of EcoRI**: EcoRI is derived from the organism from which it is isolated, which is Escherichia coli.

2. **Break down the name**: The name EcoRI can be broken down into two parts: 'Eco' and 'RI'. The 'Eco' part refers to the genus of the bacteria, which is Escherichia.

3. **Determine what 'co' stands for**: In the name Escherichia coli, 'coli' is the specific species name. Therefore, the 'co' in EcoRI stands for 'coli'.

4. **Select the correct option**: Among the options provided:
- coli
- colon
- coelom
- coenzyme

The correct answer is 'coli'.

5. **Conclusion**: The 'co' in EcoRI stands for 'coli', indicating that this restriction endonuclease is derived from the bacterium Escherichia coli.