Difference between revisions of "Phenotype"
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A phenotype is an observable and measurable trait (in the broadest sense; e.g., size, pigmentation, behaviors, social interactions, etc.) that results from a combination of an organisms underlying genotype and from environmental effects on development, behavior, etc. Some phenotypes have a strong genetic basis while others have a very low level of heritability. If a trait has no genetic basis and is only a result of environmental effects (such as haphazard morphological physical damage that was not correlated with any genetic predisposition) it is not a phenotype. | A phenotype is an observable and measurable trait (in the broadest sense; e.g., size, pigmentation, behaviors, social interactions, etc.) that results from a combination of an organisms underlying genotype and from environmental effects on development, behavior, etc. Some phenotypes have a strong genetic basis while others have a very low level of heritability. If a trait has no genetic basis and is only a result of environmental effects (such as haphazard morphological physical damage that was not correlated with any genetic predisposition) it is not a phenotype. | ||
| − | [[Pleiotropy]] and [[Genetic Heterogeneity]] are concepts that are involved in the connection between genotypes and phenotypes. | + | [[Pleiotropy]] and [[Genetic Heterogeneity]] are concepts that are involved in understanding the connection between genotypes and phenotypes. |
In humans stature is a common example of a phenotype with both a genetic (e.g., inherited growth factor activities) and environmental (e.g., nutrition) component. | In humans stature is a common example of a phenotype with both a genetic (e.g., inherited growth factor activities) and environmental (e.g., nutrition) component. | ||
[[Category:Basic Knowledge]][[Category:Classical Genetics]][[Category:Quantitative Genetics]] | [[Category:Basic Knowledge]][[Category:Classical Genetics]][[Category:Quantitative Genetics]] | ||
Latest revision as of 04:25, 24 January 2016
A phenotype is an observable and measurable trait (in the broadest sense; e.g., size, pigmentation, behaviors, social interactions, etc.) that results from a combination of an organisms underlying genotype and from environmental effects on development, behavior, etc. Some phenotypes have a strong genetic basis while others have a very low level of heritability. If a trait has no genetic basis and is only a result of environmental effects (such as haphazard morphological physical damage that was not correlated with any genetic predisposition) it is not a phenotype.
Pleiotropy and Genetic Heterogeneity are concepts that are involved in understanding the connection between genotypes and phenotypes.
In humans stature is a common example of a phenotype with both a genetic (e.g., inherited growth factor activities) and environmental (e.g., nutrition) component.
