crRNA จะจับกับ Cas protein เพื่อไปตัด foreign DNA ที่มีเบสเข้าคู่กันกับ crRNA แต่ถ้าเกิด mismatch ระหว่าง spacer กับ foreign DNA ก็จะทำให้ foreign DNA ไม่ถูกตัด
CrRNA to catch up with Cas protein to cut foreign DNA containing a matching bass with crRNA, but if there is a mismatch between the spacer with the foreign DNA, it makes foreign DNA could not be cut.
crRNA Cas protein binds to foreign DNA in order to cut a duet with bassist crRNA But if foreign DNA mismatch between the spacer with the foreign DNA, it will not be cut.
CrRNA will catch up with Cas protein to cut foreign DNA with base matches with crRNA but if mismatch between spacer with foreign. DNA will make foreign DNA not cut.