Though most research suggests that people are attracted to those who are similar to them, there is evidence of one exception. What is that exception in relation to?

Name: Though most research suggests that people are attracted to those who are similar to them, there is evidence of one exception. What is that exception in relation to?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Research indicates that people are often attracted to those with different immune system genes, as this diversity can lead to healthier offspring.

Though Most Research Suggests That People Are Attracted to Those