Any estimate of the heritability of a particular trait is specific to one population in one environment.
- The degree to which genetic variations among persons may adequately explain the variations in their attributes is known as heritability.
- Characteristics like height, eye color, and IQ are examples of traits, as are illnesses like schizophrenia and autism spectrum disorder.
- Heritability, which is denoted by the statistic h2 in science, describes the proportion of a trait's variation that can be attributable to genetic variation.
- An estimation of a trait's heritability is particular to one population in a particular setting, and it might alter over time as conditions change.
- Between 0 and 1 heritability estimates are given. A heritability near to zero indicates that environmental variables, rather than genetic differences, account for the majority of variation in a trait among individuals.
- Due to their lack of genetic control, traits like religion or spoken language have a heritability of zero.
- A heritability near to one means that genetic differences account for almost all of the variability in a characteristic, with little to no influence from environmental factors.
- High heritability is a characteristic of many diseases, including phenylketonuria (PKU), which is brought on by variations (also known as mutations) in a single gene.
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