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a DNA segment that serves as a kind of "switch" by controlling the access of RNA polymerase to the promoter
a series of genes that code for specific products and the regulatory elements that control these genes
a gene system whose operator gene and three structural genes control lactose metabolism in E. coli
a regulatory protein that binds to an operator an dblocks transcription of the gene of an operator
the site of active transcription of DNA to RNA a region of DNA that is uncoiled and undergoing active transcription into RNA
regulatory proteins in eukaryotes that binds to DNA and stimulates the transcription of certian genes
a DNA sequence that recognizes certain transcription factors that can stimulate transcription of nearby genes
the process by which a cell becomes specialized for a specific structure or function
A gene that regulates normal cell division but that can become a cancer causing oncogene as a result of mutation or recombination
a growth that arises from normal tissue but that grows abnormally in rate and structure and lacks a function
Tumor- Suppressor Gene
a gene that suppresses tumor formation but that, when mutated, causes a loss in cell function, which results in tumor formation
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