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samgirl2000
samgirl2000
12.11.2019 • 
Biology

Abacterial operon is responsible for the production of the biosynthetic enzymes needed to make the hypothetical amino acid tisophane (tis). the operon is regulated by a separate gene, r. the deletion of r causes the loss of enzyme synthesis. in the wild-type condition, when tis is present, no enzymes are made; in the absence of tis, the enzymes are made. mutations in the operator gene (o−) result in repression regardless of the presence of tis.

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