| Clue | Source | Date |
|---|---|---|
| Genetic unit in all mammalian egg cells | USA Today | 07 Jun 2021 |
| It's found in pairs in females | USA Today | 31 Mar 2017 |
| Almost every man in the world has one | ||
| Gift from one's mother, and perhaps from one's father | ||
| It occurs in pairs in females | ||
| Gender factor | ||
| Sex determinant | ||
| A man has to have one | ||
| Gender determinant | ||
| Sex determinant |