Investigating why humans are susceptible to disease.

The following table summarizes the total numbers of adults out of the 300 samples who are lactase persistent or lactase nonpersistent.
The second table summarizes the number of infants who show lactase activity or who show no lactase activity. The infants were sampled in the same area as the adults.

Age

Number of samples out of 300 that are lactase persistent

Number of samples out of 300 that are lactase nonpersistent
Adults

108

192

Age

Number of infants out of 300 that show lactase activity

Number of infants out of 300 that show no lactase activity
Infants

299

1

Click to view the percentage of specific mutations within the geographic regions.