open continuous culture
Open pollination
Open reading frame
operational definition
Operator
operon
opine
OPU
ORF
Organ
organ culture
organellar gene
Organelle
Organic agriculture
organic complex
| organic evolution
organism
organized growth
organized tissue
organogenesis
organoid
organoleptic
Origin of replication
orphan gene
orphan receptor
ortet
orthologous
OSHA
osmosis
osmotic potential
|