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Questions and Answers
Which of the following is true about somatic mutations?
Which of the following is true about somatic mutations?
- They are the principal cause of many inherited diseases
- They are typically not inherited by offspring (correct)
- They only affect the function of essential enzymes
- They are inherited by offspring
How can mutations arise due to the action of a mutagen?
How can mutations arise due to the action of a mutagen?
- By preventing the incorporation of mismatched bases during replication
- By changing the structure of nucleotides within the DNA molecule (correct)
- By increasing the accuracy of DNA replication
- By preventing DNA replication from occurring
What is the principal cause of many inherited diseases like cancer?
What is the principal cause of many inherited diseases like cancer?
- Mutations arising from errors in DNA replication
- Germline mutations (correct)
- Incorporation of mismatched bases during replication
- Chemical modification of nitrogenous bases
What type of DNA alterations can be inherited by offspring?
What type of DNA alterations can be inherited by offspring?
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What is the second way in which mutations can arise according to the text?
What is the second way in which mutations can arise according to the text?
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Which type of mutation is caused by UV radiation?
Which type of mutation is caused by UV radiation?
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What is the result of depurination in DNA?
What is the result of depurination in DNA?
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Which mutation leads to the substitution of an incorrect amino acid?
Which mutation leads to the substitution of an incorrect amino acid?
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What causes the incorporation of valine in place of glutamine in the β-globin chain of hemoglobin?
What causes the incorporation of valine in place of glutamine in the β-globin chain of hemoglobin?
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What is the most frequent type of spontaneous mutations?
What is the most frequent type of spontaneous mutations?
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