The following items on your order contain mixed bases:

If you did not intend to order gBlocks Gene Fragments with mixed bases, please remove them or confirm the current design by checking the box below.

The following items on your order contain restriction site conflicts:

Please check the box below to confirm the current design, or modify the sequence to remove the conflicts.

The following sequences on your order are reverse complements:

Both the sense and antisense strands may be ordered together for a reduced price. To do so, please remove the duplicate item, then check the "Include antisense strand" box at the top of the page. If you would like to proceed with the order as entered, please check the box below.