From Correlation to Cause
In 1949, Dr. Allison discovered that people with the HbS allele are protected from malaria.
That is why a mutation that causes a potentially deadly disease spread in some populations instead of being selected against.
In 1949, Dr. Allison discovered that people with the HbS allele are protected from malaria.
That is why a mutation that causes a potentially deadly disease spread in some populations instead of being selected against.