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From which organism was the first restriction enzyme isolated?

AEscherichia coli

BSalmonella typhimurium

CBacillus cereus

DStaphylococcus aureus

Answer:

A. Escherichia coli

Read Explanation:

The restriction enzymes are molecular scissors that cleave the DNA at specific recognition sites. They were first isolated from Escherichia coli in the year 1963.


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