Question

Which of the following molecules forms lengths of DNA with sticky ends ?

• A. DNA ligase
• B. DNA polymerase
• C. RNA polymerase
• D. Restriction enzyme

Answer 1

The correct option is D Restriction enzyme

Restriction enzymes are molecular scissors that cut DNA by identifying specific sequences. These sequences are different for different enzymes. If two different DNA strands are cut with same restrictions enzymes, it results in the production of sticky ends. Sticky ends have overlaps that allow the two ends to base-pair and join together with another DNA strand.

So, the correct option is 'Restriction enzyme'.