Select all that apply What does the protein product of a regulator gene do? Multiple select question. promotes transcription in structural genes binds to an operon causes apoptosis regulates expression of structural genes
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Regulator genes produce proteins that control the expression of other genes, particularly structural genes. Show more…
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Which of the following is true about enhancers? [Select all that apply] Each eukaryotic gene has one enhancer Each enhancer regulates a single gene Enhancers can be located downstream of the structural gene they regulate Enhancers can bind activators or repressors Enhancers must be located within 100bp of the promoter of the gene they regulate QUESTION 2 What is the purpose of the lac operon in the cell? [Select all that apply] Mediating cell-cell signalling Protection against toxins Controlling cell division and DNA replication Ensuring efficient utilization of certain carbon sources
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QUESTION 21 Fill in the blanks about the interaction between RNA polymerase and promoters in prokaryotes. On its own, RNA polymerase binds to gene promoters that are regulated by transcriptional activators, but binds to promoters that are regulated with transcriptional repressors. QUESTION 22 In eukaryotes, multiple genes can be expressed simultaneously by QUESTION 23 Which enzymatic activities are typically associated with the Trithorax complex? (choose all correct answers, no partial credit) QUESTION 24 Long noncoding RNA (lncRNA) can function as a(n) QUESTION 25 A reporter gene is an experimentally engineered regulatory DNA sequence from a gene of interest that has been fused to a gene that encodes a protein that is easily observed experimentally. Why is this approach useful?
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