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NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Yeast and Lactose 
Name: Taylor
Status: Student
Grade:  9-12
Location: SC
Country: United States
Date: February 2006
Question:
Why wont yeast react to lactose?


Replies:
All biochemical processes require enyzmes that allow them to occur at useful rates. Yeast don't have the genes that code for the production of lactases, or enzymes that allow them to break down lactose.

vanhoeck


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