"We have information about far more similarities and differences among people based on traits other than skin color," Professor Diamond said.

Therefore, females' selection might depend on other sexual traits of males' trains.

Throughout the early 1900s, the study of leadership focused on traits.

Soft sweeps work on traits affected by many genes, like height.

Regardless of the approach, qualitative researchers organize their data into groups based on various common traits.

Another 2005 study focused on sub-threshold autistic traits in the general population.

Discovery of such a gene may one day help cast light on human traits, he said.

Most, however, agree on certain consistent entrepreneurial traits and environmental influences.

Adaptation is not voluntary, but is based on inherited traits.

His most famous analyses were based on clear-cut traits with simple dominance.