Exam 5: Epigenetic Influences on Gene Expression

What would be the expected outcome for a person who has a normal gene allele and an abnormal gene allele for insulin and the area around the abnormal gene allele isheavily methylated?

In fragile X syndrome, only noncoding regions within the gene for a protein that directs and maintains brain development are heavily methylated, resulting indecreasedcognitive ability and behavioral problems. What is the most likely mechanism of this abnormal expression?

What would be the expected result when the area around an oncogene is hypomethylated?

Which statement about the microbiome is true?

How is eating a diet high in broccoli thought to reduce cancer risk?

How does histone modification alter gene expression?

Which statement regarding the influence of epigenetic changes on gene expression is always true?

How is alcohol consumption thought to increase methylation in cancer suppressor genes to increase the risk for head and neck cancer?

Which term or phrase is used to describe the ability of the environment to cause different phenotypes to develop from the same genotype?

By which mechanism does microRNA "silence" gene expression?

What part of a chromosome's DNA is altered by histone modification?