Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Chapter 12, Problem 14QP
What are the roles of cellular proto-oncogenes, and how are these roles consistent with their implication in oncogenesis?
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What is a proto-oncogene? What are the typical functions of proteinsencoded by proto-oncogenes? At the level of protein function,what are the general ways that proto-oncogenes can beconverted to oncogenes?
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What is the experimental evidence that demonstrates direct evidence that chemical carcinogens are able to produce oncogenes?
Chapter 12 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 12.10 - If improved diagnostic tests are developed from...Ch. 12.10 - If you had cancer, would you donate tissue samples...Ch. 12.10 - Prob. 1GRCh. 12.10 - Another model, the random model, proposes that any...Ch. 12 - Mike was referred for genetic counseling because...Ch. 12 - Mike was referred for genetic counseling because...Ch. 12 - Mike was referred for genetic counseling because...Ch. 12 - Theodor Boveri predicted that malignancies would...Ch. 12 - Distinguish between a familial and a sporadic...Ch. 12 - Benign tumors: a. are noncancerous growths that do...
Ch. 12 - Prob. 4QPCh. 12 - Prob. 5QPCh. 12 - Prob. 6QPCh. 12 - Prob. 7QPCh. 12 - Prob. 8QPCh. 12 - What is the difference between a proto-oncogene...Ch. 12 - Distinguish between dominant inheritance and...Ch. 12 - Describe the likelihood of developing bilateral...Ch. 12 - Prob. 12QPCh. 12 - The search for the BRCA1 breast cancer gene...Ch. 12 - What are the roles of cellular proto-oncogenes,...Ch. 12 - Which of the following mutations will result in...Ch. 12 - Prob. 16QPCh. 12 - The following family has a history of inherited...Ch. 12 - You are in charge of a new gene therapy clinic....Ch. 12 - Prob. 19QPCh. 12 - Can you postulate a reason or reasons why children...Ch. 12 - Prob. 21QPCh. 12 - In Section 12-1, Julie is concerned that she may...Ch. 12 - Prob. 23QPCh. 12 - What are some factors that epidemiologists have...Ch. 12 - Smoking cigarettes has been shown to be associated...Ch. 12 - Prob. 26QPCh. 12 - Studies have shown that there are significant...
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- Identify two genetic mechanisms whereby proto-oncogenes can become overexpressed. Select the two mechanisms. Identify two genetic mechanisms whereby proto-oncogenes can become overexpressed.Select the two mechanisms. 1) alterations in chromatin structure 2) a gain-of-function alteration 3)modification of proto-oncogenes products 4)mutations that result in an abnormal protein product 5)mutations within gene-regulatory regionsarrow_forwardWhat protein does the P53 code for and why is it important?arrow_forwardWhat role does p53 signaling play in normal cells?arrow_forward
- What are the three ways that a proto-oncogene can be activated and discuss how they can cause hyper-activity of a protein?arrow_forwardHow is epigenetic information similar to and different from genetic information? What attributes of epigenetic information make it critical for cellular differentiation in multicellular eukaryotes? asaparrow_forwardDescribe the molecular process of X-chromosome inactivation.This description should include the three phases of inactivationand the role of the Xic. Explain what happens to the X chromosomes during embryogenesis, in adult somatic cells, and duringoogenesis.arrow_forward
- The following chromosomal aberration is found in nearly 90-95% of all patients who have chronic myelogenous leukemia. This is because the change brings the BCR and ABL genes in close proximity. BCR is responsible for cell growth, and ABL is a proto-oncogene... this favors uncontrolled growth. Which is the most accurate description of the aberration... chio moso me 9 Philad elphia chromosome chromosome 22 BCR ABL 22q11.2 (BCR) 9934 1 (ABL) Deletion Translocation Inversion Duplication DELL O O O Carrow_forwardAcquired mutation in the p53 gene is the most common genetic alteration found in human cancer (> 50% of all cancers). A germline mutation in p53 is the causative lesion of Li- Fraumeni familial cancer syndrome. In many tumors, one p53 allele on chromosome 17p is deleted and the other is mutated. What type of protein is encoded by the p53 gene? (A) Caspase (B) DNA repair enzyme (C) Membrane cell adhesion molecule (D) Serine phosphatase (E) Telomerase (F) Transcription factor (G) Tyrosine kinasearrow_forwardWhy are oncogenes usually dominant in their action, whereas tumor-suppressor genes are recessive?arrow_forward
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