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In simple terms, panmixia (or panmicticism) is the ability of individuals in a population to interbreed without restrictions; individuals are able to move about freely within their habitat, possibly over a range of hundreds to thousands of miles, and thus breed with other members of the population.
Devolution (biology) – Notion that species can revert to primitive forms; Flynn effect – 20th-century rise in intelligence test scores; Heritability of IQ – Percent of variation in IQ scores in a given population associated with genetic variation; List of congenital disorders; List of biological development disorders
The term antonym (and the related antonymy) is commonly taken to be synonymous with opposite, but antonym also has other more restricted meanings. Graded (or gradable) antonyms are word pairs whose meanings are opposite and which lie on a continuous spectrum (hot, cold).
An example of stable underdominance may occur in individuals who are heterozygotic for polymorphisms that would make them better suited for one of two niches. [7] Consider a situation in which a population is completely homozygotic for an "A" allele, allowing exploitation of a particular resource. Eventually, a polymorphic "a" allele may be ...
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Chemical biology; Chronobiology ... membrane glycerophospholipids of the opposite chirality compared ... which regulatory mechanisms of population are density ...
Genetic hitchhiking is often considered the opposite of background selection. genetic load Any reduction in the mean fitness of a population owing to the existence of one or more genotypes with lower fitness than that of the most fit genotype. [1] genetic testing. Also DNA testing and genetic screening.
A 'relictual population' is a population that currently occurs in a restricted area, but whose original range was far wider during a previous geologic epoch. Similarly, a 'relictual taxon' is a taxon (e.g. species or other lineage) that is the sole surviving representative of a formerly diverse group.