Lac operon is a group of genes often found in prokaryotes, which is only activated when lactose (instead of glucose) is available as a respiratory substrate. Here we will discuss how the regulatory and structural genes and other substances interact to produce enzymes to metabolise lactose. Keep in mind that even though eukaryotes don't have the lac operon, we do have regulatory and structural genes. Make sure you can identify them in exam questions on eukaryotic gene expression control or epistasis based on the information given!
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Негізгі бет A2 Biology - Lac operon (OCR A Chapter 19.2)
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