Many pre-existing and naturally occurring gene sequences have been patented for the purpose of allowing certain companies exclusive rights to identify these genes at high cost to the consumer. For example; identifying the primary gene sequence for determining risk of breast cancer.
Though the research should be lauded, and the investment reimbursed, Section 8 of the US Constitution clearly calls for a limited time on technological discoveries. Retention of some of these patents (especially the one mentioned above) has become excessive, monopolistic, and exploitative.