Gene studies begin to unravel autism puzzle

http://www.newsdaily.com/stories/bre833128-us-autism-usa-genes/

A sweeping study of hundreds of families with autism has found that spontaneous mutations can occur in a parent's sperm or egg cells that increase a child's risk for autism, and fathers are four times more likely than mothers to pass these mutations on to their children, researchers said on Wednesday.

Read the full article: http://www.newsdaily.com/stories/bre833128-us-autism-usa-genes/