| 100% | AMINOACIDS | 10 | Molecules that combine to form proteins |
| 76% | AMINO | 5 | Type of acids that combine to form proteins |
| 46% | MERGE | 5 | Combine to form a single entity |
| 44% | LIGANDS | 7 | Molecules that bind to receptors |
| 42% | MONOMER | 7 | Molecule that binds to other identical molecules |
| 42% | OZONE | 5 | Molecule that causes thunderstorms to have a smell |
| 41% | POLIS | 5 | Combining form that means “city” |
| 40% | ZINC | 4 | Metal that combines with copper to make brass |
| 40% | RED | 3 | Color that combines with yellow to make orange |
| 40% | ENZYMES | 7 | Protein molecules that work as catalysts |
| 40% | RNA | 3 | Molecule key to protein synthesis: Abbr. |
| 38% | KERATIN | 7 | Protein that helps form hair and nail tissue |
| 38% | ELASTIN | 7 | Protein that allows skin to stretch or contract |
| 37% | REBUS | 5 | Puzzle format that combines pictures with letters to depict words or phrases |
| 37% | AMINO | 5 | Kind of acid that forms proteins |
| 36% | BEANBAG | 7 | Soft, lumpy chair that molds itself to your form |
| 36% | MOLD | 4 | Shaped form that may be used to cast jewelry |
| 36% | RHESUS | 6 | Monkey that gave its name to a blood protein |
| 36% | TIN | 3 | Metal that's combined with copper to make bronze |
| 35% | ENZYME | 6 | Protein that acts as a catalyst to bring about a biochemical reaction |
| 35% | PERU | 4 | Country that you add "-vian" to for the adjective form |
| 35% | HANDSCROLL | 10 | *Narrative art form that's often read right to left |
| 35% | CORN | 4 | Vegetable that's combined with lima beans to make succotash |
| 35% | PUN | 3 | Wordplay that's said to be "the lowest form of humor" |
| 35% | NUTS | 4 | *Chopped ___, crunchy topping for 31a that adds protein to your breakfast |
| 35% | TARN | 4 | A mountain lake formed due to rainfall that rhymes with "barn" |
| 34% | TAB | 3 | Keyboard key that takes you to the next blank in a form |
| 33% | ICEDTEA | 7 | Drink that's combined with lemonade to make an Arnold Palmer: 2 wds. |
| 33% | DELI | 4 | Adding “sh” to its end forms an adjective that might describe its offerings |
| 33% | IRS | 3 | Grp. that's true to form? |