The genetic basis refers to the influence of genes on a particular trait or characteristic, such as intelligence. It suggests that variations in genes can contribute to individual differences in traits.
Heritability refers to the proportion of individual differences in a trait that can be attributed to genetic factors. It helps us understand how much genetics contribute to a specific trait.
Environmental factors include non-genetic influences on traits such as upbringing, education, and experiences. They interact with genetics to shape individual characteristics.