| Clue | Source | Date |
|---|---|---|
| Twice the helium and lithium unknown in molecule | The Times Quick Cryptic | 13 Feb 2024 |
| Shape of 7-Down | New York Times | 24 Jul 2018 |
| Shape of 7-Down | ||
| DNA's shape | ||
| Structure of this puzzle's theme, hidden in five answers | ||
| Structure of this puzzle's theme, hidden in five answers | ||
| DNA coil | ||
| Spiral arrangement of the two complementary strands of DNA: 2 wds. | ||
| DNA structure |