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Questions and Answers
What would be the conclusion if a chemical causes lower growth compared to the control group?
What would be the conclusion if a chemical causes lower growth compared to the control group?
- The chemical needs to be metabolized first
- The chemical has no effect on growth
- The chemical is not a mutagen (correct)
- The chemical is a mutagen
What is the term for a non-direct acting mutagen that needs to be metabolized first?
What is the term for a non-direct acting mutagen that needs to be metabolized first?
- Mutagen
- Chemical agent
- Histidine
- Pro-mutagen (correct)
What would be the conclusion if histidine grows after mixing with a chemical?
What would be the conclusion if histidine grows after mixing with a chemical?
- The chemical has no effect on histidine
- The chemical needs to be metabolized first
- The chemical is a mutagen (correct)
- The chemical is not a mutagen
What is the effect of a mutagen on the growth of mutated histidine?
What is the effect of a mutagen on the growth of mutated histidine?
What is the role of metabolic activation in a pro-mutagen?
What is the role of metabolic activation in a pro-mutagen?
What is the result if a chemical causes an increase in the growth of mutated histidine?
What is the result if a chemical causes an increase in the growth of mutated histidine?
What is the definition of a mutagen?
What is the definition of a mutagen?
What is the role of a mutagen in the growth of histidine?
What is the role of a mutagen in the growth of histidine?
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Study Notes
Mutagenicity
- A mutagen is a chemical that causes an increase in growth due to mutations.
- If a chemical causes lower growth compared to the control group, it is not a mutagen.
- Mutagens increase growth by causing mutations in histidine, which then grow.
Direct and Indirect Acting Mutagens
- A mutagen can be direct or indirect acting.
- Pro-mutagen is a non-direct acting mutagen that needs to be metabolized first before it can convert histidine to its mutated form (his+).
Note on Research
- Rozaini conducted research on mutagenicity from 2009 to 2012.
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