| Answer | Crossword Clue |
|---|---|
| FRAT | Single-sex house, usually |
| COED | Not single-sex |
| ALLGIRL | Like some single-sex schools |
| COED | Not single-sex, as a school |
| BROWN | Sex and the Single Girl author |
| RNA | It's usually single-stranded |
| RNA | Usually single-stranded molecule |
| RNA | Usually single-stranded genetic molecule |
| BSIDE | Less popular song on a single, usually |
| CETERA | Latin word usually abbreviated with a single letter |
