-Twin studies have confirmed that genetic and environmental factors operate mutual dynamic to guide development. Adoption and twin studies have confirmed that when compared to environmental factors, genetic factors have more influence on personality development.
-Twin and adoption studies allow one to tease apart the effects of genes and environments. Twin studies compare the patterns of behavioral characteristics between identical, or monozygotic (MZ), and fraternal, or dizygotic (DZ), twins.
-Adoption studies are typically used together with twin studies when estimating heritability. Twin studies allow researchers to examine the overall role of genes in the development of a trait or disorder.
The number of protons in the nucleus of an atom determines an element's atomic number. In other words, each element has a unique number that identifies how many protons are in one atom of that element.
