generate questions: There is a wide consensus that the racial categories that are common in everyday usage are socially constructed, and that racial groups cannot be biologically defined. Nonetheless, some scholars argue that racial categories obviously correlate with biological traits (e.g. phenotype) to some degree, and that certain genetic markers have varying frequencies among human populations, some of which correspond more or less to traditional racial groupings. For this reason, there is no current consensus about whether racial categories can be considered to have significance for understanding human genetic variation.
What type of group can't be biologically defined? {sep_token} What type of categorization in every day usage is there wide agreement it is only a social construct? {sep_token} What do some people contend racial categories are obviously correlated with? {sep_token} Some genetic markers have varying frequencies among what populations? {sep_token} What is the majority opinion on whether racial categories can be considered to have impact on human genetic variation?