Yes, cheek cells are present in saliva.
Explanation of Cheek Cells in Saliva
When you rinse your mouth, your saliva naturally contains cheek cells. These cells are shed from the lining of your oral cavity and are a normal component of saliva.
- Why are they present? The inner lining of your cheeks is constantly being renewed, and old cells slough off. These shed cells mix with the saliva in your mouth.
- How are they relevant? As indicated in the reference, these cheek cells, which are present in saliva, can be used to collect DNA. When a protocol to extract DNA is performed, the cells will be broken open to release the DNA.
Practical Insights
- DNA Testing: Because cheek cells in saliva contain DNA, this is the easiest way to collect DNA for testing.
- Non-Invasive: This method is non-invasive, making it ideal for at-home genetic testing kits.
- Simple Collection: A simple mouthwash with saline can be used to collect the cheek cells, rather than an invasive procedure.
Table Summary
| Component | Description | Source |
|---|---|---|
| Cheek Cells | Cells shed from the inner lining of the mouth | Oral cavity |
| Saliva | Fluid produced in the mouth | Salivary glands |
| DNA | Genetic material contained within the cells | Cell nucleus |
