P53 is a tumor suppressors protein. The protein is present in the cell at all times but is activated by protein kinases that are, in turned activated by DNA damage. A mutation of the P 53 gene in cell results in a form of P53 that is permanently active. What would happen to the mutant version of the P53 gene?Group of answer choicesA. it would spread to neighboring cells but not very farB. it would be found in tumor cells onlyC. it would take over the world and make us all do its biddingD. it would only be found in the original cell in which the mutation occurredE. it would spread to all cells in the body

Answer) E It would spread to all parts of the body. p53 gene act as a tumor suppressor gene and get…

P53 is a tumor suppressors protein. The protein is present in the cell at all times but is activated by protein kinases that are, in turned activated by DNA damage. A mutation of the P 53 gene in cell results in a form of P53 that is permanently active. What would happen to the mutant version of the P53 gene?

P53 is a tumor suppressors protein. The protein is present in the cell at all times but is activated by protein kinases that are, in turned activated by DNA damage. A mutation of the P 53 gene in cell results in a form of P53 that is permanently active. What would happen to the mutant version of the P53 gene?

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter17: Developmental Genetics

Section: Chapter Questions

Problem 8TYU: Which of the following statements about cancer is false? (a) oncogenes arise from mutations in...

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Which of the following statements about cancer is false? (a) oncogenes arise from mutations in proto-oncogenes (b) tumor suppressor genes normally interact with growth-inhibiting factors to block cell division (c) more than 120 cancer-driving genes have been discovered (d) oncogenes were first discovered in mouse models for cancer (e) the development of cancer is usually a multistep process involving both oncogenes and mutated tumor suppressor genes
P53 is a tumor suppressor protein. The protein is present in the cell at all times but is activated by protein kinases that are, in turned activated by DNA damage. What would be the result of a mutation of the P 53 gene in cell that resulted in a form of P53 that was permanently active? Group of answer choices A. the cell cycle would be inhibited in all cells in a tumor if it forms B. the cell cycle would be inhibited C. the cell would form a tumor D. the cell has a higher probability of forming a tumor E. the cell cycle of all cells in the body would be inhibited
With regard to cancer cells, which of the following statementsare true?A. Cancer cells are clonal, which means they are derived from asingle mutant cell.B. To become cancerous, cells usually accumulate multiplegenetic changes that eventually result in uncontrolledgrowth.C. Most cancers are caused by oncogenic viruses.D. Cancer cells have lost the ability to properly regulate celldivision.
Which of the following is true of tumor suppressor genes? Group of answer choices a) If this gene is overactive, it becomes an oncogene b) If one of the alleles is mutated, there is usually little effect. Two inactivating mutations are usually required for loss of function (recessive mutation). c) If one copy is lost, the gene no longer functions (dominant mutation) d) Tumor suppressors genes usually cause mitosis or cell growth e) Tumor suppressor genes decrease apoptosis
Which of the following types of mutations would be advantageous to a cancer cell (select all that apply)? A. An inactivating mutation in a tumor suppressor gene B. Methylation of the promoter of a tumor suppressor gene C. An inactivating mutation in an oncogene D. Mutation that inactivated DNA repair gene E. An inactivating mutation in an oncogene
Which of the following is not a tumor suppressor gene? a.RET b.RB c.BRCA1 d.BRCA2
Which of the following statements correctly describes a characteristic of tumor-suppressor gene? a) they are frequently overexpressed in cancerous cells. b) they are cancer-causing genes introduced into cells by viruses. c) they encode proteins that help prevent uncontrolled cell growth. d) they often encode proteins that stimulate the cell cycle.
Which of the following is not an example of tumor-suppressor gene? A. p53 gene B. Rb gene C. DCC gene D. Ras GTPase it is not c
Which of the following steps are correct about multistep tumorigenesis (select all that apply)? A. Mutations in progenitor cells are more likely to develop a neoplastic state compared to mutations in stem cells B. Driver mutations give a cell clone a proliferative advanage C. The rate of mutation /genetic change is constant during tumor progression D. Nutrition/diet may effect rate of tumorigenesis E. All cells within a tumor are biologically equivalent and equally capable of high levels proliferation
A tumor suppressor gene ___regulates the cell cycle; an example is _____. Select one: a. negatively, cyclin b. positively, retinoblastoma c. positively, p21 d. negatively, retinoblastoma e. positively, RAS
Why would the failure of the p53 tumor supressor gene be more likely to cause cancer in a seventy year old person compared to a ten year old person? Group of answer choices A) The seventy year old is more likely to have pre-existing failures in cell cycle control B) cells divide more rapidly as people get older C) there are fewer mutations in genes controlling the cell cycle in older people D)the p53 gene never works well in old people
Which of the following is NOT an example of fail-safe mechanisms that prevent the irregular cell divisions characteristic of cancer? a.Shortening of telomeres b.Cell division limit c.Mutation in a tumor suppressor gene d.Triggered cell death