Why is that some people can't digest milk and other people can?

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Naila Pachani

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Naila Pachani asked the Naked Scientists:
   
Why is that some people can't digest milk and other people can?

What do you think?
« Last Edit: 05/11/2010 17:30:03 by _system »

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SteveFish

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There are several versions of the gene that codes for the lactase enzyme that breaks down lactose.