| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| Lucrezia Borgia may have been an expert in this, the study of poisonous substances | toxicology | $1,600 | DJ | BRANCHES OF SCIENCE | 2017-11-07 | #7627 | |
| The study of poisons & drugs, coroners often wait its report to determine the cause of death | toxicology DD | $1,000 | J | -OLOGIES | 2003-07-17 | #4364 | |
| It's the science of poisonous substances & their effects | toxicology | $1,000 | DJ | -OLOGIES | 1991-03-28 | #1524 | |
| It's a strict study of strychnine, or any other poison | toxicology | $1,000 | DJ | -OLOGIES | 1988-02-09 | #797 |