UT SAN DIEGO - Dec 2 - DNA analysis could play into whom to marry, whether to have children. 23andMe and Ancestry.com have been simplifying the genetic information they sell to the mass consumer. This month, GenePeeks plans to launch a service (cost $2K) that checks whether a particular woman is a good genetic match with a particular sperm donor. The service is already generating chatter on dating sites. In 2007, it cost $9M to sequence a person’s entire genome. Today, it's $5K.