Deep inside the vault where the blueprints stay,
Locked in the nucleus, safe from the day,
Sits double-stranded DNA, twisted and tight,
Holding the secrets of life and of light.
To build up the body with structure and speed,
Enzymes and tissues are just what we need.
So Transcription begins as the helix unwinds,
And RNA polymerase carefully binds.
One single strand of mRNA is made,
With Uracil stepping in Thymine’s shade.
A ribbon of ribose, half of a stair,
It slips out the nucleus into the air.
Out on the factory floor—Cytoplasm wide—
Ribosomes clamp to the messenger’s side.
Now Translation starts, reading three bases deep,
Each codon a promise the workers must keep.
With sixty-four codes for just twenty main parts,
AUG signals the place where it starts.
Then tRNA shuttles, supplying the freight,
Matching anticodons to open the gate.
With peptide bonds linking each acid in line,
The rRNA stitches the cellular twine.
Till a STOP codon—UAA—brings it to rest,
And a newly-made protein emerges, refreshed.
From DNA’s vault to the RNA’s flight,
To proteins that power our physical might,
The Central Dogma forever holds true:
The invisible code that is constantly you.
Summary
This poem illustrates the Central Dogma of Molecular Biology, explaining how genetic information flows from DNA to RNA to proteins. Through transcription, DNA’s instructions are copied into a single-stranded messenger RNA (mRNA) inside the nucleus, substituting uracil for thymine. The mRNA then travels to a ribosome in the cytoplasm for translation, where transfer RNA (tRNA) reads three-letter genetic codes (codons) and assembles specific amino acids into a functioning protein chain, starting at AUG and ending at a stop codon.
Famous Quote
“DNA was the first three-dimensional copier; it was the first information technology.”
— Matt Ridley, Genome: The Autobiography of a Species in 23 Chapters
