Explain the method of DNA sequencing using automated DNA sequencing technique.

Automated DNA Sequencing Technique:
1. Preparation: DNA is fragmented and each fragment is amplified.
2. Labeling: Fluorescently labeled dideoxynucleotides (ddNTPs) are used to terminate the DNA chain at different points.
3. Separation: The fragments are separated by size using capillary electrophoresis.
4. Detection: A laser detects the fluorescent tags on the ddNTPs as the fragments pass through a detector, and the sequence is read by a computer.