| Answer | Crossword Clue |
|---|---|
| RNA | Nucleus molecule (abbr.) |
| MRNA | Genetic molecule that's synthesized in the nucleus, then enters the cytoplasm: Abbr. |
| species | particular kind of atomic nucleus, atom, molecule, or ion |
| transitions | abrupt change in energy state or level (as of an atomic nucleus or a molecule) usually accompanied by loss or gain of a single quantum of energy |
| RNA | Genetic molecule: Abbr. |
| RNA | Messenger molecule (abbr.) |
| ATP | Molecule that carries energy: Abbr. |
| RRNA | Molecule key for studying evolutionary relationships between species: Abbr. |
