Final answer:
Lactase persistence varies among populations, and specific SNPs linked to this trait differ in Asian and African people. Research indicates mutations like EPAS1 and PPARA in Tibetans illustrate genetic adaptation but are not directly related to lactase persistence. Specific SNPs in African populations have been identified, although detailed SNP information for Asian populations is not provided in the referenced documents.
Step-by-step explanation:
Lactase persistence, the continued activity of the enzyme lactase in adulthood, varies among populations. In Asian and African populations, several single nucleotide polymorphisms (SNPs) have been identified as being associated with lactase persistence. Although not explicitly mentioned, the most common SNP associated with lactase persistence in Europeans, known as -13910*T (LCT), may not be prevalent in these groups. Instead, different mutations might be at play for lactase persistence in various populations.
Research into the genetic adaptation of the Tibetan population has led to the discovery of mutations like EPAS1, which is associated with higher blood lactic acid concentrations, and PPARA, which is linked to increased fatty acid production. While these mutations illustrate the adaptation of the human genome to specific environmental pressures, they are not directly related to lactase persistence. However, they signify the variety of genetic adaptations that can occur within a population.
In Africa, various SNPs have been implicated in lactase persistence among different populations, such as those identified in the study by Tishkoff et al., which found several SNPs (e.g., -14010*C, -13907*G, -13915*G) in East African pastoralist groups. Similarly, other studies have reported different lactase persistence-associated SNPs in African populations. However, detailed information on SNPs in Asian populations with respect to lactase persistence was not provided in the references and thus cannot be detailed here.