Some species of Streptococcus,when grown on blood agar,produce a complete hemolysis with the formation of a clear zone around the colony; this is referred to as

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Beta-hemolysis is complete hemolysis, causing a clear zone around the colony on blood agar. Alpha-hemolysis is partial hemolysis, causing a greenish discoloration around the colony, and gamma-hemolysis is no hemolysis, leaving the blood agar unchanged.

Some Species of Streptococcus,when Grown on Blood Agar,produce a Complete