| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| In humans, this sex chromosome is present only in males | the Y chromosome | $400 | DJ | BIOLOGY | 2007-12-12 | #5353 | |
| The presence of this chromosome in a set of 23 pairs indicates the set is from a human male | the Y chromosome | $500 | J | BIOLOGY | 1991-10-25 | #1645 |