Question

Which of the following is not required in the preparation of recombinant DNA molecule ? 

(a) Restriction endonuclease 

(b) DNA ligase 

(c) DNA fragments 

(d) E. coli

Comments

d) E.coli is the most relevant answer.

Answer 1

The correct answer is (d) 

• coli (Escherichia coli), is a type of bacteria that normally lives in your intestines. It's also found in the gut of some animals. 
• Most types of E. coli are harmless and even help keep your digestive tract healthy. But some strains can cause diarrhea if you eat contaminated food or drink fouled water.