When a particular mutagen is identified by the Ames test and injected into mice (group A), it causes tumors, showing that the substance in carcinogenic. When cells from those tumors are injected into mice that were not exposed to the mutagen, the new mice get tumors (group B). However, when mice with tumors are mated to unexposed mice, no tumors are seen in the offsprings (group C). Explain why each of these mice get/do not get tumors and the nature of those tumors (environmental/inherited).

Human Anatomy & Physiology (11th Edition)
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9. When a particular mutagen is identified by the Ames test and injected into mice (group A), it causes
tumors, showing that the substance in carcinogenic. When cells from those tumors are injected into mice
that were not exposed to the mutagen, the new mice get tumors (group B). However, when mice with
tumors are mated to unexposed mice, no tumors are seen in the offsprings (group C). Explain why each of
these mice get/do not get tumors and the nature of those tumors (environmental/inherited).
Transcribed Image Text:9. When a particular mutagen is identified by the Ames test and injected into mice (group A), it causes tumors, showing that the substance in carcinogenic. When cells from those tumors are injected into mice that were not exposed to the mutagen, the new mice get tumors (group B). However, when mice with tumors are mated to unexposed mice, no tumors are seen in the offsprings (group C). Explain why each of these mice get/do not get tumors and the nature of those tumors (environmental/inherited).
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