Final answer:
Personal DNA testing services are available to the public and typically can be ordered without a doctor's involvement, though the level of federal regulation varies and may be stricter for health-related claims.
Step-by-step explanation:
Personal DNA testing services are available to the general public and represent a rapidly growing market. These services, which offer insights into ancestry, health predispositions, and trait carriers, can usually be ordered directly by consumers without the need for a healthcare provider's involvement. However, regulation may vary, with some aspects being loosely regulated while others, particularly health-related claims, facing stricter scrutiny. The level of federal regulation in this area is an evolving space as the FDA seeks to balance protecting consumers with fostering innovation.