The frequency of testing and the number of samples tested can vary in a genetic monitoring program. This will depend on your confidence in your source of mice, breeding history, and size of colonies. Some possible scenarios:

• Test some or all new breeders before putting into service depending on your confidence in their background.
• Test one mouse from every breeding pair or every other breeding pair of a colony.
• Test study animals at the end of experiments if you are concerned with phonotypes or results.
• Consulting with Transnetyx or your animal facility can help you decide how best to utilize Genetic Monitoring services.