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Questions and Answers
Which process results in heritable expression or repression of genes?
Which process results in heritable expression or repression of genes?
- Oxidative DNA adducts
- DNA hydroxylation
- DNA methylation (correct)
- Oxidative DNA damage
What is the main source of oxidative DNA damage?
What is the main source of oxidative DNA damage?
- Excessive sunlight exposure
- Air pollution
- Free radical reactions in the cell (correct)
- Chemicals in processed foods
Which type of DNA modification involves the transfer of a methyl group?
Which type of DNA modification involves the transfer of a methyl group?
- DNA hydroxylation
- Oxidative DNA damage
- DNA methylation (correct)
- Oxidative DNA adducts
What is the role of S-adenosylmethionine in DNA modification?
What is the role of S-adenosylmethionine in DNA modification?
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What is a common feature of oxidative DNA adducts?
What is a common feature of oxidative DNA adducts?
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What is a characteristic of nongenotoxic carcinogens?
What is a characteristic of nongenotoxic carcinogens?
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Which mode of action is NOT associated with nongenotoxic carcinogens?
Which mode of action is NOT associated with nongenotoxic carcinogens?
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What is one of the mechanisms through which nongenotoxic carcinogens can induce tumors?
What is one of the mechanisms through which nongenotoxic carcinogens can induce tumors?
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Which of the following is a mode of action of nongenotoxic carcinogens?
Which of the following is a mode of action of nongenotoxic carcinogens?
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Why do nongenotoxic carcinogens typically require prolonged exposure to produce tumors?
Why do nongenotoxic carcinogens typically require prolonged exposure to produce tumors?
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