mRNA vaccine and submarine: what they have in common

1. Step 1. mRNA vaccine — uses — DNA sequencing. Developed from a sequenced genome.
2. Step 2. DNA sequencing — uses — Laser. Fluorescent sequencing.
3. Step 3. Laser — has part — Mirror. A resonator made of mirrors.
4. Step 4. Mirror — is part of — Periscope. Mirrors or prisms.
5. Step 5. Periscope — is part of — Submarine. A periscope.

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