operator gene
— Navneord
– Engelsk
～ a gene that activates the production of messenger RNA by adjacent structural genes
operator
— Navneord
– Engelsk
～ an agent that operates some apparatus or machine; "the operator of the switchboard"
operculate
— Tillægsord
– Engelsk
～ having an operculum
operculated
— Tillægsord
– Engelsk
～ having an operculum
operculum
— Navneord
– Engelsk
～ a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted
operetta
— Navneord
– Engelsk
～ a short amusing opera
operon
— Navneord
– Engelsk
～ a segment of DNA containing adjacent genes including structural genes and an operator gene and a regulatory gene
operose
— Tillægsord
– Engelsk
～ characterized by effort to the point of exhaustion; especially physical effort; "worked their arduous way up the mining valley"; "a grueling campaign"; "hard labor"; "heavy work"; "heavy going"; "spent many laborious hours on the project"; "set a punishing pace"
operoseness
— Navneord
– Engelsk
～ the quality of requiring extended effort
Opheodrys aestivus
— Navneord
– Engelsk
～ of southern and eastern United States
Opheodrys
— Navneord
– Engelsk
～ North American green snakes