Question

Manipulation of DNA in genetic engineering became possible due to the discovery of

Answer 1

Your answer is Restriction endonuclease

Answer 2

Manipulation of DNA in ‘genetic engineering’ became possible due to the discovery of ‘Restriction endonuclease’.

Explanation:  

• Manipulation of DNA is very important for biotechnological studies. This is because of the presence of molecular scissors known as restriction endonuclease.  

• They are important since ‘different types of restriction’ endonuclease cut the DNA at different locations.  

• Hence they can be made to attach to other DNA strand due to the presence of sticky ends by DNA ligase enzymes.  

• Restriction endonuclease was discovered in the ‘20th century’ from bacteria for biotechnological studies.