Genetics Quiz#9 Regulation of gene expression

1. A mutation occurs in the promoter region of a gene critical for cell growth regulation. Which of the following is the most likely consequence of this mutation?

Question 1 of 5

2. Enhancers and silencers are regulatory elements that influence gene expression. Where are they typically located relative to the gene they regulate?

Question 2 of 5

3. Which of the following accurately describes the role of an enhancer in gene expression?

Question 3 of 5

4. A researcher is studying a gene that is abnormally overexpressed in a cancer cell line. Upon investigation, it is found that there is a mutation in a regulatory sequence far upstream of the gene's promoter. This mutation likely affects which of the following elements?

Question 4 of 5

5. Silencers are genetic elements that can repress the expression of a gene. Their mechanism of action most closely resembles which of the following?

Question 5 of 5


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