: the act of conjugating : the state of being conjugated
a: fusion of usually similar gametes with ultimate union of their nuclei that occurs in most fungi and in some algae (as green algae) b: temporary cytoplasmic union with exchange of nuclear material that is the usual sexual process in ciliated protozoans c: the one-way transfer of DNA between bacteria in cellular contact
Interaction of adjacent bonds in a chemical compound having alternating single and double covalent bonds. The conjugated bonds show modified characteristics because of increased electron delocalization and sharing. Conjugation occurs, for example, within a molecule containing a chain of carbon atoms linked by alternating single and double bonds. Such a conjugated system often gives rise to substances with intense colourse.g., the biological pigments called carotenes. Another example is the carboxyl group (seecarboxylic acid; functional group), in which the double bond of the carbonyl group (CO) is adjacent to the single bond attaching the hydroxyl group (OH) to the carbon atom.