Genetics

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This is an image of Bob, the guinea pig. Credit: selbst.

Genetics involves the expression, transmission, and variation of inherited characteristics.

Heredity[edit]

Main sources: Genetics/Heredity and Heredity

Def. gene "transmission of the physical and [genetic] qualities of parents to their offspring; the biological law by which living beings tend to repeat their characteristics in their descendants"[1] is called heredity.

Phenotypes[edit]

Def. the "appearance of an organism based on a multifactorial combination of genetic traits and environmental factors, especially used in pedigrees"[2] is called a phenotype.

Theory of genetics[edit]

This guinea pig has gorgeous long hair and was a prize winner at the Puyallup, WA fair. Credit: Christine from Washington State, USA.

Def. a "branch of biology that deals with the transmission and variation of inherited characteristics, in particular chromosomes and DNA"[3] is called genetics.

Evolutionary genetics[edit]

Molecular genetics[edit]

Def. a "field of biology which studies the structure and function of genes at a molecular level"[4] is called molecular genetics.

Optogenetics[edit]

Def. a "science that combines optics and genetics to probe neural circuits"[5] is called optogenetics.

Population genetics[edit]

Def. the "study of the allele frequency distribution and change under the influence of the four evolutionary processes: natural selection, genetic drift, mutation and gene flow"[6] is called population genetics.

Quantitative genetics[edit]

Hypotheses[edit]

Main source: Hypotheses
  1. Individual breeding preferences coupled with geographical isolation may produce new species.
  2. Cavia porcellus may be derived from Cavia tschudii.

See also[edit]

References[edit]

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External links[edit]

{{Gene project}}