Question

The following steps are used to make DNA fingerprints. What is the third step? Group of answer choices Collect DNA. Digest with a restriction enzyme. Perform electrophoresis. Lyse cells. Add stain.

Answer 1

Answer: Perform Gel electrophoresis

Explanation: The third step in making DNA fingerprint is the Gel electrophoresis. In this process, the DNA base are separated according to fragment sizes and charge. Electric current is applied to the gel mixture thereby causing the DNA strands to move through the gel and this results to the separation of different sizes of the DNA fragment.