What is the typical data payload per DNA oligo used in demonstrations, including adapters?

• A. Around 50 bases.
• B. Around 100–200 bases per oligo, plus adapters.
• C. More than 1,000 bases.
• D. Only a single base.

Answer: (B)

Data is packed into short DNA strands, and the length is chosen to balance data per molecule with how reliably we can synthesize and read the oligos. In demonstrations, a practical data payload sits in the ~100–200 bases range. That gives enough room to encode meaningful data while keeping error rates and costs manageable. Adapters and primer regions are added for sequencing and amplification, so they push the total length beyond the payload. In other words, the usable data portion is around 100–200 bases, with adapters increasing the overall length. Shorter payloads would require many more oligos to store the same data, while much longer oligos are harder and more error-prone to synthesize and sequence. Hence the typical choice of roughly 100–200 bases of data per oligo, plus the necessary adapter sequences.