Question

DNA ligase can ligate restriction site ends produced by EcoRI to the ends of DNA insert cut by the

same enzyme.​

Answer 1

Explanation:

The ends of the cut have an overhanging piece of single-stranded DNA. These are called "sticky ends" because they are able to form base pairs with any DNA molecule that contains the complementary sticky end. Any other source of DNA treated with the same enzyme will produce such molecules.