Lipstick and laser: what they have in common

1. Step 1. Lipstick — uses — Dye. Pigments.
2. Step 2. Dye — uses — Fermentation. Some dyes (indigo) were obtained by fermenting plants.
3. Step 3. Fermentation — is a kind of — Chemical reaction. A biochemical reaction.
4. Step 4. Chemical reaction — is used in — PCR. An enzymatic reaction.
5. Step 5. PCR — is used in — DNA sequencing. Preparing samples.
6. Step 6. DNA sequencing — uses — Laser. Fluorescent sequencing.

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