Quantitative genetics

thumb|right|160px|Studies of heritability ask questions such as to what extent do genetic factors influence differences in height between people. This is not the same as asking to what extent do genetic factors influence height in any one person. Heritability is a statistic used in the fields of breeding and genetics that estimates the degree of variation in a phenotypic trait in a population that is due to genetic variation between individuals in that population. The concept of heritability can be expressed in the form of the following question: "What is the proportion of the variation in a g

DNA locus associated with variation in a quantitative trait

ecological concept

the study of the inheritance of continuously measured traits

interaction of a dominant allele with a recessive allele resulting in complete expression or non-expression of a trait

Gene considered likely to be involved in a condition

percent of variation in IQ scores in a given population associated with genetic variation

trait that varies in its degree rather than in terms of presence and absence