Dna

mRNA I I

Regulatory gene r produces an inactive repressor, which cannot bind to the operator.

2) RNA polymerase transcribes the structural genes. Translation makes the enzymes of the tryptophan synthesis pathway.

Inactive repressor

2) RNA polymerase transcribes the structural genes. Translation makes the enzymes of the tryptophan synthesis pathway.

Enzymes of the _

synthesis pathway e d c b

Transcription proceeds

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Essentials of Human Physiology

Essentials of Human Physiology

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