Inheritance, Lineage & Development

← Back to Domain-Specific Families

Abstractions about biological lineage, inheritance, developmental patterning, and the relationships among ancestry, genotype, phenotype, and organismal form.

17 abstractions in this family — domain-specific abstractions that sit near one another in structural-signature space (k-means over structural-signature embeddings). Each is shown with its short description.

• Ahnentafel — A genealogical numbering system assigning a proband 1, each person’s father twice their number and mother twice plus one.
• Branching identification key — A graphically displayed single-access taxonomic key whose decision alternatives branch from diagnostic character choices to candidate identifications.
• Cadet branch — A genealogical branch descended from a dynasty's younger child or non-senior line, distinct from the senior line favored by the relevant succession and inheritance convention.
• Cytotaxonomy — The classification and inference of organismal relationships using chromosome number, structure and meiotic behavior as taxonomic evidence.
• Deep homology — Deep evolutionary conservation of genetic regulatory mechanisms across distantly related organisms, even when the resulting organs or traits are not themselves homologous and may have evolved independently.
• Endogenization — The evolutionary process by which exogenous viral genetic material becomes stably integrated into a host germline and inherited as an endogenous viral element.
• Epigenesis (biology) — The developmental view that an organism's differentiated structures arise progressively through interactions during development rather than existing preformed in the germ.
• Genetic reductionism — The view that genes alone or primarily suffice to explain complex traits, behavior or social outcomes.
• Genotype–phenotype distinction — The genetics distinction between inherited molecular information and the observable traits produced through its interaction with development and environment.
• Germ-band extension — A convergent-extension morphogenetic process in the Drosophila embryo in which mediolateral cell intercalation lengthens the future segmented trunk along its anterior–posterior axis while narrowing it dorsoventrally.
• Goodwin model (biology) — A nonlinear negative-feedback model of gene regulation in which mRNA, protein and downstream products can generate sustained biochemical oscillations.
• Hard inheritance — The historical heredity model in which inherited variation passes through germ-line material and acquired somatic changes are not transmitted to offspring.
• Infinitesimal model — A quantitative-genetic model treating a trait’s heritable component as the sum of very many individually tiny genetic effects.
• Left-right asymmetry — The developmental process that breaks bilateral symmetry and establishes consistent side-specific anatomy in an embryo.
• Lineage (genetic) — Track a chain of genetic descent through which inherited sequence states pass from ancestors to descendants while mutation and recombination create historically ordered differences.
• Pedigree collapse — The reduction in a pedigree’s number of distinct ancestors when the same individual occupies multiple ancestral positions through shared descent.
• Zygosity — The relationship among allele copies at a locus or genomic region, classically classified as homozygous, heterozygous, hemizygous or nullizygous under ploidy and copy-number context.