Customers have the option of ordering oligo pools, gene fragments, and clonal genes.

Oligonucleotides (linear single-stranded DNAs) in an oligo pool can range in size from 20 bp to 300 bp.

Gene fragments are linear double-stranded DNAs that can range in size between 300 bp and 1,800 bp in length.

Clonal genes are double-stranded DNAs that have been cloned into one of Twist’s vectors or a customer-provided custom vector. Clonal genes can range in size between 300 bp and 5,000 bp in length.