Biology: Science for Life with Physiology (5th Edition)
5th Edition
ISBN: 9780321922212
Author: Colleen Belk, Virginia Borden Maier
Publisher: PEARSON
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Chapter 6, Problem 11LTB
Summary Introduction
To define:
The term protooncogene and oncogene.
Introduction:
Cancer is a disease characterized by abnormal cell division. It occurs when cells in a region of the body proliferates in an uncontrolled manner, the excess tissue that develops is called a tumor or neoplasm. The main cause of the cancer is the presence of the oncogenes in the cells.
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Chapter 6 Solutions
Biology: Science for Life with Physiology (5th Edition)
Ch. 6 - Prob. 1LTBCh. 6 - Prob. 2LTBCh. 6 - A cell that begins mitosis with 46 chromosomes...Ch. 6 - The centromere is a region at which ___________....Ch. 6 - Prob. 5LTBCh. 6 - At metaphase of mitosis, ___________. the...Ch. 6 - Sister chromatids ___________. are two different...Ch. 6 - DNA polymerase ___________. attaches sister...Ch. 6 - Prob. 9LTBCh. 6 - Prob. 10LTB
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- Explain what a lysogen is.arrow_forwardWhich of the following is an example of a proto-oncogene? 1) cell cycle inhibitor 2) tumor suppressor 3) oncogene 4) repair enzyme 5) growth factor receptorarrow_forward/20. In class, we discussed diffferent types of genetic change that can cause a normal gene (proto- oncogene) to become a cancer-causing gene (oncogene), Which of the following would not be a cause? A) translocation or transposition (movement of DNA within the same genome) B) gene ampliffication (increased number of copies of a given gene) C) epigenetic change D) point mutation that changes the gene's product E) loss of telomeres during DNA replication ancer?arrow_forward
- What kind of daughter cells will result if the "Normal cell" above goes through mitosis? A) two normal cells B) two cancer cells C) two specialized cells D) one cancer cell and one normal cellarrow_forwardDeletion of a cellular proto-oncogene is likely to be associated with cancer. True Falsearrow_forwardSuppose a gain-of-function mutation happens in an oncogene. Which of the following changes is likely to result? O a) tumor-promoting inflammation O b) evading growth suppressors Oc) sustaining proliferative signalling O d) resisting cell deatharrow_forward
- // Which of the following can become oncogenes by over-expression of the normal protein? src O Cip Op53 ✔Myc Jun Uarrow_forwardGive one examples of mutaion?arrow_forwardWhat are the roles of cellular proto-oncogenes, and how are these roles consistent with their implication in oncogenesis?arrow_forward
- Proto-oncogenes can change into oncogenes that cause cancer.Which of the following best explains the presence of thesepotential time bombs in eukaryotic cells?(A) Proto-oncogenes first arose from viral infections.(B) Proto-oncogenes are mutant versions of normal genes.(C) Proto-oncogenes are genetic “junk.”(D) Proto-oncogenes normally help regulate cell division.arrow_forwardCan you please answer questions 13,14, and 15 pleasearrow_forwardIn the pathway below, normal signalling driving cell division requires a mitogen (ligand), an RTK, Ras and proteins X and Y. Which of the following statements is true about the genes that encode the mitogen and Ras in healthy cells? mitogen active Ras protein CYTOSOL GTP active signaling protein Y active receptor active signaling protein X tyrosine kinase CELL DIVISONarrow_forward
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