Colligative properties are those properties of solutions that depend on the number of dissolved particles in solution, but not on the identities of the solutes. For example, the freezing point of salt water is lower than that of pure water, due to the presence of the salt dissolved in the water.
Shares & Saves. Save. DNA testing evolved from the study of genetics, which began in the late 1800s when Gregor Mendel first studied the phenomenon of inherited traits in pea plants. His work laid the foundation for the discovery of DNA, or deoxyribonucleic acid, the molecules that contain our genetic makeup.
According to Anne Wojcicki, 23andMe has been in dialogue with the FDA since 2008. In 2010 the FDA notified several genetic testing companies, including 23andMe, that their genetic tests are considered medical devices and federal approval is required to market them.23andMe first submitted applications for FDA clearance in July and September 2012.he company still sells a personal genome test without health-related results in the United States. 23andMe has been selling a product with both ancestry and health-related components in Canada since October 2014, and in the United Kingdom since December 2014.