Save guides, add subjects and pick up where you left off with your BBC account. Put 1cm³ of amylase enzyme into tube 1 but not tube 2. Leave at room temperature for five minutes. Test for starch ...

Two new studies found that ancient human ancestors carried a surprising diversity of genes for amylase, an enzyme that breaks down starch. By Carl Zimmer As soon as you put starch in your mouth — ...

This is a preview. Log in through your library . Abstract A predictable divergence in gene frequency of the amylase variants Amy1 and Amy4,6, which differ in their enzymatic activities, was recorded ...