Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 6, Problem 9RQ
A gene that codes for a positive cell cycle regulator is called a(n) _______.
a. kinase inhibitor
b. tumor suppressor gene
c. proto-oncogene
d. oncogene
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A gene that codes for a positive cell-cycle regulator is called a(n) _____. a. kinase inhibitor. b. tumor suppressor gene. c. proto-oncogene. d. oncogene.
Cancer causing genes are called ________. a. transformation genes b. tumor suppressor genes c. oncogenes d. mutated genes
An individual can inherit a gene in which expression has been altered by an ________ change with no mutation of the gene sequence.
Choose the description in column 2 that best matches each gene in column 1.
p53
c-myc
A.
tumor suppressor gene
B.
oncogene
Chapter 6 Solutions
Concepts of Biology
Ch. 6 - Figure 6.4 Which of the following is the correct...Ch. 6 - A diploid cell has _ ____ the number of...Ch. 6 - An organism’s traits are determined by the...Ch. 6 - Chromosomes are duplicated during what portion of...Ch. 6 - Separation of the sister chromatids is a...Ch. 6 - The individual chromosomes become visible with a...Ch. 6 - What is necessary for a cell to pass the G2...Ch. 6 - ________ are changes to the nucleotides in a...Ch. 6 - A gene that codes for a positive cell cycle...Ch. 6 - Which eukaryotic cell-cycle event is missing in...
Ch. 6 - FtsZ proteins direct the formation of a ________...Ch. 6 - Compare and contrast a human somatic cell to a...Ch. 6 - Describe the similarities and differences between...Ch. 6 - Outline the steps that lead to a cell becoming...Ch. 6 - Explain the difference between a proto-oncogene...Ch. 6 - Name the common components of eukaryotic cell...
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- A mutated gene that codes for an altered version of Cdk that is active in the absence of cyclin is a(n) _____. a. kinase inhibitor. b. tumor suppressor gene. c. proto-oncogene. d. oncogene.arrow_forwardThese genes are involved in normal cell growth and division, but if mutated, could become more active than normal and lead to cancer cell formation. A. Oncogenes B. Tumor suppressor genes C. Proto oncogenes D. All of thesearrow_forwardAnswerarrow_forward
- 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, RASarrow_forwardMatch the gene on the left with the gene category on the right. ERBB2 E-cadherin BRCA1 Cdk4 A. oncogene B. proto-oncogene C. low expression in invasive cells D. tumor suppressor genearrow_forwardP53 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 choices A. it would spread to neighboring cells but not very far B. it would be found in tumor cells only C. it would take over the world and make us all do its bidding D. it would only be found in the original cell in which the mutation occurred E. it would spread to all cells in the bodyarrow_forward
- Mutations 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_forwardWhy 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 p53 gene never works well in old people B. cells divide more rapidly as people get older C.The seventy year old is more likely to have pre-existing failures in cell cycle control D. there are fewer mutations in genes controlling the cell cycle in older peoplearrow_forwardA mutation in the Ras protein could directly affect improper _____ Select one: a. cell signaling leading to alterations in cell division b. cell signaling leading to alterations proteasome activity c. microtubule assembly leading to faulty cell division d. protein degradation during the cell cycle e. protein phosphorylation in the cell cyclearrow_forward
- Why are dominant mutations in proto-oncogenes generally not inherited? A. Inherited mutations in proto-oncogenes would not affect cell division rate B. Inherited mutations in proto-oncogenes would decrease cell division rate and no viable embryo would form C. Inherited mutations in proto-oncogenes would increase cell division rate and no viable embryo would form D. Dominant mutations in proto-oncogenes are always inheritedarrow_forwardWhich of the following accurately compares tumor suppressor genes and proto-oncogenes? A. Both tumor suppressor and proto-oncogenes prevent the spread of cancer by targeting and destroying existing cancer cells. B. A person who has both tumor suppressor and proto-oncogenes will always develop cancer. C. Proto-oncogenes code for growth factors, while tumor suppressor genes inhibit cell division of damaged cells. D. When a proto-oncogene mutates, it becomes a tumor suppressor gene.arrow_forwardChoose the item in column 2 that best matches each item in column 1. Cdk APC ced mutants EGF A. direct regulation of cell cycle processes B. chromosome separation or cytokinesis mechanisms C. mitogen signaling pathways D. apoptosisarrow_forward
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