How scientists engineer bacteria to glow in the dark
In short: This video breaks down the fundamental techniques of molecular biology used in AP Biology labs, specifically focusing on how DNA can be manipulated and visualized.
Paul Andersen explores two core pillars of molecular biology: transformation and DNA manipulation. The first section demonstrates transformation by using the pGLO plasmid to induce glowing E. coli bacteria.
The second portion covers the mechanics of restriction enzymes, which act as biological scissors to cut DNA at specific sites, and gel electrophoresis, a method used to separate those fragments based on size.
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Sources
- Summary by Intellect · source: AP Biology Lab 6: Molecular Biology
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