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Human height is a continuous trait meaning that there is a wide range of heights. There are an estimated 50 genes that affect the height of a human. Environmental factors, like nutrition, also play a role in a human's height. Other examples of complex traits include: crop yield, plant color, and many diseases including diabetes and Parkinson's ...
Under the Polygenic Model, for traits, like height, to be continuous in a population there must be many genes that code for the trait. Otherwise, the expression of the trait is limited by the number of possible combinations of alleles. The many genes which code for the continuous trait are also further modified by environmental conditions. [3]
The liability threshold model was developed to deal with these non-Mendelian binary cases; the model proposes that there is a continuous normally-distributed trait expressing risk polygenically influenced by many genes, which all individuals above a certain value develop the disease and all below it do not.
Identity is the set of qualities, beliefs, personality traits, appearance, and/or expressions that characterize a person or a group. [1] [2] [3] [4]Identity emerges during childhood as children start to comprehend their self-concept, and it remains a consistent aspect throughout different stages of life.
In sociology, for example, proponents of action theory have suggested that social stratification is commonly found in developed societies, wherein a dominance hierarchy may be necessary in order to maintain social order and provide a stable social structure.
The trait is still the result of variance in genetic sequence between individuals as a result of inheritance from their parents. Common traits which may be linked to genetic patterns are earlobe attachment, hair color, and hair growth patterns. [10] In terms of evolution, genetic mutations are the origins of differences in alleles between ...
Social constructionism is a term used in sociology, social ontology, and communication theory.The term can serve somewhat different functions in each field; however, the foundation of this theoretical framework suggests various facets of social reality—such as concepts, beliefs, norms, and values—are formed through continuous interactions and negotiations among society's members, rather ...
However, multifactorial traits may be discontinuous or continuous. [ citation needed ] Continuous traits exhibit normal distribution in population and display a gradient of phenotypes while discontinuous traits fall into discrete categories and are either present or absent in individuals.