Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 10, Problem 22RQ
are changes to the order of
- Proto-oncogenes
- Tumor suppressor genes
- Gene mutations
- Negative regulators
Expert Solution & Answer
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Check out a sample textbook solutionStudents have asked these similar questions
Which of the following demonstrates the link between oncogenes and cancer?
The mutations in oncogenes increase the activity or number of molecules that stimulate mitosis, leading to irregular cell division.
Oncogenes produce molecules that inhibit mitosis.
Oncogenes do not have mutations that increase the activity or number of molecules that stimulate mitosis.
Oncogenes are genes that transform tumor cells into normal cells.
"In the cellular regulatory pathways that control cell growth and proliferation, the products of oncogenes are stimulatory components and the products of tumor suppressor genes are inhibitory components" is true or false.
Products of proto-oncogenes and tumor-suppressor genes can be
growth factors and growth factor receptors
signaling molecules like protein kinases
proteins that control DNA repair
transcription factors
all of the above
Chapter 10 Solutions
Biology 2e
Ch. 10 - Figure 10.6 Which of the following is the correct...Ch. 10 - Figure 10.13 Rb and other proteins that negatively...Ch. 10 - Figure 10.14 Human papillomavirus can cause...Ch. 10 - A diploid cell has ________ the number of...Ch. 10 - An organism s traits are determined by the...Ch. 10 - The first level of DNA organization in a...Ch. 10 - Identical copies of chromatin held together by...Ch. 10 - S. Chromosomes are duplicated during what stage of...Ch. 10 - Which of the following events does not occur...Ch. 10 - The mitotic spindles arise from which cell...
Ch. 10 - Attachment of the mitotic spindle fibers to the...Ch. 10 - Unpacking of chromosomes and the formation of a...Ch. 10 - Separation of the sister chromatids is a...Ch. 10 - The chromosomes become visible under a light...Ch. 10 - The fusing of Golgi vesicles at the metaplhase...Ch. 10 - At which of the cell-cycle checkpoints do external...Ch. 10 - What is the main prerequisite for clearance at the...Ch. 10 - If the M checkpoint is not cleared, what stage of...Ch. 10 - Which protein is a positive regulator that...Ch. 10 - Many of the negative regulator proteins of the...Ch. 10 - Which negative regulatory molecule can trigger...Ch. 10 - are changes to the order of nucleotides in a...Ch. 10 - A gene that codes for a positive cell-cycle...Ch. 10 - A mutated gene that codes for an altered version...Ch. 10 - Which molecule is a Cdk inhibitor that is...Ch. 10 - Which eukaryotic cell-cycle event is missing in...Ch. 10 - FtsZ proteins direct the formation of a...Ch. 10 - Compare and contrast a human somatic cell to a...Ch. 10 - What is the relationship between a genome,...Ch. 10 - Eukaryotic chromosomes are thousands of times...Ch. 10 - Briefly describe the events that occur in each...Ch. 10 - Chemotherapy drugs such as vincristine (derived...Ch. 10 - Describe the similarities and differences between...Ch. 10 - List some reasons why a cell that has just...Ch. 10 - What cell-cycle events will be affected in a cell...Ch. 10 - Describe the general conditions that must be met...Ch. 10 - Compare and contrast the roles of the positive...Ch. 10 - What steps are necessary for Cdk to become fully...Ch. 10 - Rb is a negative regulator that blocks the cell...Ch. 10 - Outline the steps that lead to a cell becoming...Ch. 10 - Explain the difference between a proto-oncogene...Ch. 10 - List the regulatory mechanisms that might be lost...Ch. 10 - ______ can trigger apoptosis if certain cell-cycle...Ch. 10 - Name the common components of eukaryotic cell...Ch. 10 - Describe how the duplicated bacterial chromosomes...
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- Benign tumors: a. are noncancerous growths that do not spread to other tissues b. do not contain mutations c. are malignant and clonal in origin d. metastasize to other tissues e. none of thesearrow_forward________ are changes to the nucleotides in a segment of DNA that codes for a protein. a. Proto-oncogenes b. Tumor suppressor genes c. Gene mutations d. Negative regulatorsarrow_forwardExplain the difference between a proto-oncogene and a tumor suppressor gene.arrow_forward
- 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 genesarrow_forwardCompare and contrast oncogenes and tumor suppressors. Contrast oncogenes and proto-oncogenes. Describe the types of mutations that convert proto-oncogenes into oncogenes. Summarize some functions of common oncogenes in cell survival and uncontrolled growth. Contrast tumor suppressors to oncogenes. Describe the types of mutations in tumor suppressors that are found in common cancers. Summarize the functions of common tumor suppressors in cell survival and cell growth.arrow_forwardDefine the following terms: tumor, neoplasia, anaplasia, metastasis, proto-oncogene, oncogene, and tumor suppressor gene.arrow_forward
- 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 apoptosisarrow_forwardMutations in the ras gene family induce normal cells to proceed into the replication cycle. This converts the ras gene from a ________ gene to a ________ gene. a. proto-oncogene; oncogene b. oncogene; proto-oncogene c. mutant; oncogene d. tumor suppressor; proto-oncogenearrow_forwardExplain in general what is meant by a proto-oncogene and how they are involved in the formation of a tumorarrow_forward
- Which of these events do you think is likely to promote tumorigenesis in affected cells? Group of answer choices DNA methylation of the promoter region of a tumor suppressor gene Hypermethylation of transcription factors that antagonize Wntsignaling Open chromatin in the region of of DNA harboring an activating mutation of beta-catenin All of thesearrow_forwardDescribe the difference between a tumor suppressor and an oncogene with respect to the actual causes of cancer.arrow_forwardBRCA1 and BRCA2 are genes that encode proteins involved in DNA repair. If DNA can not be repaired, BRCA1 and BRCA2 activate a cell cycle checkpoint. Are BRCA1 and BRCA2 proto-oncogenes or tumor suppressor genes. Please explain whyarrow_forward
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