Warren C. Lathe III

The following viewpoint is excerpted from a speech given by Warren C. Lathe III, a molecular biologist, to a congregation of the Church of Jesus Christ and Latter-Day Saints in Salt Lake City, Utah. Lathe argues that biology determines sexual orientation. He contends that some scientists have found differences in the brain anatomies between heterosexual and homosexual men while others have discovered that chromosomes seem to have a role in determining sexual orientation. Acknowledging that homosexuality has a biological component, Lathe argues, is important for promoting tolerance and acceptance of gays and lesbians.

As you read, consider the following questions:

1. According to the author, how can forgoing reproduction in favor of an organism’s kin be advantageous?
2. What are the two reasons Lathe gives for why traits seen in animals might also be seen...