Impact of selection and demography on the diffusion of lactase persistence.
BACKGROUND:The lactase enzyme allows lactose digestion in fresh milk. Its activity strongly decreases after the weaning phase in most humans, but persists at a high frequency in Europe and some nomadic populations. Two hypotheses are usually proposed to explain the particular distribution of the lac...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2009-07-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC2711333?pdf=render |