Question

Identify the wrong statement with regard to Restriction Enzymes.

 A Each restriction enzyme functions by inspecting the length of a DNA sequence.

B They cut the strand of DNA at palindromic sites.

C They are useful in genetic engineering.

D Sticky ends can be joined by using DNA ligases.

 

Answer 1

Solution:

Sticky ends contain free or hanging or unpaired nitrogen bases which can pair to complementary bases present on other DNA segment required to create a recombinant DNA. A ligase is required in absence of sticky ends to join together two segments of DNA. So, the correct answer is 'Sticky ends can be joined by using DNA ligases.'

Answer 2

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