a) In hereditary retinoblastoma tumors, Rb is mutated. Among the following mutations, which one is not likely to be found in these tumors. 1) Mutation prevents Rb to bind E2F by modifying the binding site. 2) Mutation prevents Rb to be dephosphorylated and recycled (possibly by prevented phosphorylated Rb to be recognized by the phosphatase that removes its phosphates). 3) Mutation may cause Rb to be misfolded and not have a functional conformation 4) Mutation that prevent Rb to be phosphorylated by cdk-cyclin. 5) Mutation may cause Rb to be unstable and degraded rapidly. Answer: b) Explain your choice above: Answer: c) (4 pts) Human papilloma virus (HPV) infections are the main causes of cervical cancers. Describe one mechanism by which HPV may deregulate the function of Rb shown in the diagram. Answer:
a) In hereditary retinoblastoma tumors, Rb is mutated. Among the following mutations, which one is not likely to be found in these tumors. 1) Mutation prevents Rb to bind E2F by modifying the binding site. 2) Mutation prevents Rb to be dephosphorylated and recycled (possibly by prevented phosphorylated Rb to be recognized by the phosphatase that removes its phosphates). 3) Mutation may cause Rb to be misfolded and not have a functional conformation 4) Mutation that prevent Rb to be phosphorylated by cdk-cyclin. 5) Mutation may cause Rb to be unstable and degraded rapidly. Answer: b) Explain your choice above: Answer: c) (4 pts) Human papilloma virus (HPV) infections are the main causes of cervical cancers. Describe one mechanism by which HPV may deregulate the function of Rb shown in the diagram. Answer:
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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