Legislation has been introduced again this year in the U.S. Congress to prohibit (among other things) employers from discriminating against applicants and employees based on genetic information.
Some people are concerned that specific conditions in someone's genetic profile (susceptibility to cancer, etc.) would be used against them. But Dogbert reminds us that discrimination can be much more basic.
This "similar-to-me" bias is just one of many biases that can crop up during candidate and employee evaluation, such as interviews. Some things to keep in mind!