Quiz

Quiz: Epigenetic Changes — DNA Methylation

Pearson Edexcel Level 3 Advanced GCE in Biology A (Salters-Nuffield) (9BN0)

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Building on what you've learned about genetics and gene expression, let's test your knowledge of epigenetic changes, specifically DNA methylation!

Multiple ChoiceInteractive

What is DNA methylation?

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Which of the following are effects of DNA methylation? (Select all that apply)

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DNA methylation primarily involves the addition of methyl groups to the {{blank0}} base in DNA, affecting {{blank1}} expression.

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Match the items on the left with their correct pairs on the right

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If a segment of DNA has 10 methylated cytosine bases out of 100 total cytosine bases, what percentage is methylated?

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Match the items on the left with their correct pairs on the right

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Where does DNA methylation commonly occur?

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Select the processes that DNA methylation can influence. (Select all that apply)

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CpG islands are regions in DNA where cytosine and {{blank0}} bases are repeated many times, and are common sites for {{blank1}}.

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How can abnormal DNA methylation contribute to disease?

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