मौखिक स्वाब डीएनए नमूने एकत्र करता है , safe and hygienic methods Oral swab sampling is the best and easiest way to collect DNA samples , सुरक्षित और स्वच्छ तरीके. If done properly, the sample size obtained is sufficient. सूचना: Please don’t eat anything 30 minutes before sampling. If you smoke, rinse your mouth with water before sampling. Sampling of oral cells …