ontogenesis
/ˌɒntə(ʊ)ˈdʒɛnɪsɪs
/noun [mass noun] Biology
The development of an individual organism or anatomical or behavioural feature from the earliest stage to maturity. Compare with phylogenesis.Shepard proposes that humans go through eight stages of ontogenesis in their first twenty years of life....
- The concepts of penetrance and expressivity and also of the systemic regulation of the formation of phenotypic traits - the foundation of phenogenetics and the genetics of ontogenesis.
- Ductal plate malformation results from persistence or absence of remodeling of the embryonic ductal plate during ontogenesis.
Derivatives
ontogenetic
- The activational effects of sex-limited steroids buffer male and female phenotypes from ontogenetic conflict.
- Extant birds are the most appropriate models for understanding the ontogenetic and phylogenetic development of PSP in sauropods.
- Thus, there is no mechanism of ontogenetic developmental concrescence, just differentiation.
ontogenetically
- In the other clade characterized by a static level of disparity, Clade 5 the structure changes ontogenetically, although more subtly than in Clade 4.
- This is obvious but important, because if camerae can be derived from fossae ontogenetically then they can also be derived from fossae phylogenetically.
- Thus, the resultant planktonic cephalopods are probably trapped, either evolutionarily or ontogenetically.
Origin
Late 19th century: from Greek ōn, ont- 'being' + genesis 'birth'.