Tukuk-OS🧬 DNA Translator
ℹ️ What this tool does & how it works
The genetic code is a lookup table, so this is pure translation work: A pairs with T, C with G; the complement is read 3′→5′ which is why labs quote the reverse complement; mRNA is the coding strand with U for T; and every three-base codon maps to an amino acid through the NCBI standard table (translation stops at the first stop codon). Sequence never leaves the page — a real genome pasted here stays yours.
Reverse complement: the strand biologists quote
DNA\u2019s two strands run antiparallel — one 5\u2032\u21923\u2032, the other 3\u2032\u21925\u2032 — and polymerases only read 3\u2032\u21925\u2032 while building 5\u2032\u21923\u2032. So the matching strand of ATGCCC, written the conventional 5\u2032\u21923\u2032 way, is reversed after complementing: GGGCAT. Sequence databases, primer design and BLAST hits are all quoted on this convention, which is why "just swap the letters" is the classic first mistake. The genetic code\u2019s redundancy is the other half of the lesson: 64 codons for 20 amino acids means many third-position mutations are silent — leucine has six codons and the stop signal has three — a built-in error tolerance evolution kept when it stopped there.