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Unformatted text preview: & N ends. N- Leu Thr Asn Gln Ser Val Asn C 2. A number of mutations affect the expression of the lactose operon in E. coli. Complete the table below. Use + to indicate that the enzyme is synthesized at greater than basal levels, and to indicate that the enzyme is not synthesized at greater than basal levels. - Inducer + Inducer -galactosidase permease -galactosidase permease a) I + O + Z + Y +- - + + b) I s O + Z + Y + - - - - c) I c O + Z + Y + + + + + d) I + O c Z + Y + + + + + e) I s O c Z + Y-+ - + - f) I + O c Z + Y-+ - + + I c O + Z-Y +...
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- Spring '09