| Subsidiary | Place of Incorporation/ Organization | |||||||
| DNA Genotek Inc. | Canada | |||||||
| Sherlock Biosciences, Inc | Delaware | |||||||
| Sherlock Securities Corporation | Massachusetts | |||||||
| 221B Foundation | Delaware | |||||||
| Sense Biodetection Limited | England and Wales | |||||||
| Sense Biodetection Inc | Delaware | |||||||