Your friend tells you she thinks the constructivist perspective is wrong and race is a biological fact. she challenges you, "in fact, if race isn't biological, then how can companies determine a person's race by examining their dna
The good answer to give to your friend is that individuals
has their own physical characteristics where it likely corresponds to
instructions in their DNA. However, scientist are likely following a social
constructed rules that focuses more on race, in determining what to look in the
DNA that they are likely examining.
