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Questions and Answers
What is a mutagen?
What is a mutagen?
- A substance that repairs DNA mutations
- An enzyme involved in DNA replication
- A physical or chemical agent that changes the genetic material of an organism (correct)
- A type of mutation caused by spontaneous hydrolysis
What is the potential effect of mutagens on DNA?
What is the potential effect of mutagens on DNA?
- No impact on DNA structure
- Changes in the DNA affecting transcription and replication (correct)
- Enhancement of DNA repair mechanisms
- Decrease in mutation frequency
What is the potential consequence of deleterious mutations caused by mutagens?
What is the potential consequence of deleterious mutations caused by mutagens?
- Aberrant, impaired, or loss of function for a particular gene (correct)
- Enhanced gene expression and function
- No impact on gene function
- Decreased mutation accumulation
How do powerful mutagens affect chromosomes?
How do powerful mutagens affect chromosomes?
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What do pedigree charts primarily show?
What do pedigree charts primarily show?
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What types of changes can mutagens induce in nucleic acid sequences?
What types of changes can mutagens induce in nucleic acid sequences?
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What do geneticists use standardized symbols for in pedigree charts?
What do geneticists use standardized symbols for in pedigree charts?
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In real pedigrees, what complications can arise?
In real pedigrees, what complications can arise?
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What is the primary purpose of pedigree analysis?
What is the primary purpose of pedigree analysis?
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What does each pedigree chart represent?
What does each pedigree chart represent?
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