Asians were the ethnic group with the least responses (however, a lesser degree of bias was shown from Chinese faculty). Another interesting finding was that faculty receiving the highest pay showed the greatest bias in responding to white males more often. Biases were also found more at private schools than public ones.
If women and minorities are less likely to receive responses from as many faculty before they apply to graduate school, this is giving them fewer choices of schools they will apply to and advisors they can work with (assuming that, like me, most graduate students only apply to schools where they have received responses from professors beforehand - but I know this is more likely in the sciences than perhaps humanities). This means many students may not be able to take advantage of the best opportunities and may feel like they will be less successful in graduate school or become jaded about academia.