DNA Reverse Complement

Instructions

Paste DNA or RNA; invalid characters are rejected.

Sequences are limited to 20000 characters after cleaning. Shareable URLs encode at most 400 characters.

Example

Try the built-in example button in the tool panel, or use classroom sequences such as ATGGAGTTTTAA for DNA tools and Aa × Aa for Punnett squares.

How to interpret results

Results are deterministic educational calculations based on standard molecular biology and Mendelian rules. Read warnings and assumptions printed with each result. These tools do not provide clinical, diagnostic, or research-grade sequence interpretation.

Biological background

Compute reverse, complement, and reverse-complement sequences. Connect the outputs to the related learning topics below for packaging, expression, or inheritance context.

Limitations

• Deterministic classroom models only — not AI guesses and not clinical advice.
• Ambiguous IUPAC bases, alternative genetic codes, linkage, and epigenetic effects are out of scope unless a tool explicitly states otherwise.
• Sequence length and request size are limited to protect the server.
• Huge sequences are not placed into shareable URLs.

Related learning topics

• DNA — DNA stores genetic information as a sequence of nucleotide bases in a double helix.
• DNA base pairing — DNA base pairing pairs A with T and G with C, enabling complementary strands and accurate copying.
• Double helix — The double helix is the twisted-ladder structure of two complementary DNA strands.

Related tools

• DNA → RNA Transcription
• Sequence Analyzer