How scientists tried to confirm a "virgin birth" long before DNA testing

In the 1950s, geneticist Helen Spurway learned of a woman, Emmimarie Jones, who claimed that her daughter had been born without a father. Spurway had studied parthenogenesis in fish, and was curious as to whether a so-called "virgin birth" was possible in humans. But decades before DNA profiling, how could she confirm… » 8/19/12 1:00pm 8/19/12 1:00pm