| Answer | Crossword Clue |
|---|---|
| operculum | A structure that closes or covers an aperture, in particular |
| cribriform | Denoting an anatomical structure that is pierced by numerous small holes, in particular the plate of the ethmoid bone through which the olfactory nerves pass |
| gene | a specific sequence of nucleotides in DNA or RNA that is located usually on a chromosome and that is the functional unit of inheritance controlling the transmission and expression of one or more traits by specifying the structure of a particular polypeptide and especially a protein or controlling the function of other genetic material |
