AP Biology / Unit 6: Gene Expression and Regulation
6.8 Biotechnology
Notes
- Gel electrophoresis: DNA fragments move toward the positive end; smaller ones go farther.
- PCR: copies DNA (denature, anneal primers, extend).
- Bacterial transformation with plasmids; DNA sequencing; CRISPR editing.
Practice
In gel electrophoresis, DNA moves toward the positive electrode because:
Opposite charges attract.
Which fragments travel farthest in a gel?
Small ones slip through the gel easily.
PCR is used to:
Amplification.
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