| Answer | Crossword Clue |
|---|---|
| COED | Not single-sex |
| COED | Not single-sex, as a school |
| FRAT | Single-sex house, usually |
| ALLGIRL | Like some single-sex schools |
| BROWN | Sex and the Single Girl author |
| identical | (of twins) Developed from a single fertilized ovum, and therefore of the same sex and usually very similar in appearance |
