Q: What is the difference between an oncogene and a tumor-suppressor
What is the difference between an oncogene and a tumor-suppressor gene? Give two examples of each type of gene.
See AnswerQ: What is a proto-oncogene? What are the typical functions
What is a proto-oncogene? What are the typical functions of proteins encoded by proto-oncogenes? At the level of protein function, what are the general ways that proto-oncogenes can be converted to on...
See AnswerQ: What is a retroviral oncogene? Is it necessary for viral infection
What is a retroviral oncogene? Is it necessary for viral infection and proliferation? How have retroviruses acquired oncogenes?
See AnswerQ: A genetic predisposition to developing cancer is usually inherited as a dominant
A genetic predisposition to developing cancer is usually inherited as a dominant trait. At the level of cellular function, are the alleles involved actually dominant? Explain why some individuals who...
See AnswerQ: How does tryptophan affect the function of trp repressor?
How does tryptophan affect the function of trp repressor?
See AnswerQ: A genetic predisposition to developing cancer is usually inherited as a dominant
A genetic predisposition to developing cancer is usually inherited as a dominant trait. At the level of cellular function, are the alleles involved actually dominant? Explain why some individuals who...
See AnswerQ: Relatively few inherited forms of cancer involve the inheritance of mutant oncogenes
Relatively few inherited forms of cancer involve the inheritance of mutant oncogenes. Instead, most inherited forms of cancer are defects in tumor-suppressor genes. Give two or more reasons why inheri...
See AnswerQ: The rb gene encodes a protein that inhibits E2F, a transcription
The rb gene encodes a protein that inhibits E2F, a transcription factor that activates several genes involved in cell division. Mutations in rb are associated with certain forms of cancer, such as ret...
See AnswerQ: A p53 knockout mouse in which both copies of p53 are defective
A p53 knockout mouse in which both copies of p53 are defective has been produced by researchers. This type of mouse appears normal at birth. However, it is highly sensitive to UV light. Based on your...
See AnswerQ: With regard to cancer cells, which of the following statements are
With regard to cancer cells, which of the following statements are true? A. Cancer cells are clonal, which means they are derived from a single mutant cell. B. To become cancerous, cells usually acc...
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