It is the most common location from which a DNA sample can be taken (during a cheek swab).

The identification of the necessary genotype is carried out by means of a blood analysis or a cheek swab.

Adults could undergo a cheek swab when they renew their drivers' licenses, for example.

Children in families that have a history of the disorder could then be tested, with a cheek swab, before they are exposed to reading instruction.

A simple cheek swab is all that is needed to test if the dog has this potentially life threatening condition.

A genetic test from a cheek swab can use Per2 expression levels to tell whether a person is an early morning person or a "night owl".

The players gave cheek swabs and statements to the police the day after the party.

Families searching for their ancestors have been asked to give maternal and paternal samples - preferably two each - using a simple cheek swab.

The mission was eventually accomplished after another cheek swab - that of Ms. Fillingim's mother - came back a positive genetic hit.

Starting in 2007, genetic analysis of blood samples and cheek swabs have become available to the public.