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Frequently asked questions

Our Scientific Applications Support team has assembled a list of frequently asked questions to help you find answers quickly. Filter using one or more categories to focus on specific topics, or use the search bar to perform a text search.

What are the length restrictions for your DNA oligos?

Standard DNA oligos are synthesized up to 100 bases, while our high fidelity Ultramer™ Oligonucleotides can provide single-stranded DNA up to 200 bases. Beyond 200 bases, we offer our new gBlocks® Gene Fragments which are double-stranded DNA constructs available from 126 bp up to 2000 bp.

Custom DNA & RNA