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 3VCQ
Figure 10.14 Human papillomavirus can cause cervical cancer. The virus encodes E6, a protein that binds p53. Based on this fact and what you know about p53, what effect do you think E6 binding has on p53 activity?
- E6 activates p53
- E6 inactivates p53
- E6 mutates p53
- E6 binding marks p53 for degradation
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Students have asked these similar questions
In a few sentences, describe how p53 guards the genome. Include at least two specific ways that p53 guards the genome.
In a few more sentences, describe the structure and function of the p53 protein. Structure: what domains are present in the p53 protein? Do p53 work as a single protein or as part of a complex? Function: what do the different domains do? How can p53 do so many different things?
Which of the following statements correctly describes p53?
Which of the following statements correctly describes p53?
A) It is a membrane receptor that binds to growth factors such as EGF.
B) p53 binds to pre-replication complexes promoting the transition from G1 to S phase.
C) p53 activates cyclin-CDK complexes.
D) Activation of p53 leads to inhibition of the cyclin-CDK complexes.
E) Cell division stops until p53 binds to DNA and repairs the damage.
Which of the following must occur for programmed cell death (apoptosis):
1. p53 must be stabilized
2. M-Cdk must be active
3. Caspases must be inactivated
4. There must be local inflammation
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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- Which of the following types of mutations would be most likely to cause cells to undergo apoptosis (programmed cell death)? One that increases the affinity of p21 for Cdks One that decreases the affinity of Rb for the transcription factor E2F One that decreases the ability of p53 to bind to DNA One that causes p53 to be constitutively phosphorylatedarrow_forwardWhich protein is a positive regulator that phosphorylates other proteins when activated? a. p53 b. retinoblastoma protein (Rb) c. cyclin d. cyclin-dependent kinase (Cdk)arrow_forwardAs the most junior member of a lab, you are tasked with generating cell lines that accumulate DNA damage to investigate how random mutations affect transformation of cells into cancer cells. You decide to mutate proteins in the p53 pathway. Which three proteins would you mutate? Explain your reasoning.arrow_forward
- Why is the p53-meditated apoptosis pathway, and the GSK3 signaling pathway important for cancer therapy. Explain each of them in 3-5 sentences.arrow_forwardWhich of the following could be classified as an oncogene? None are possible oncogenes A mutant of MAP kinase that was active with or without being phosphorylated All are possible oncogenes A mutant of MEK with significantly reduced enzyme activity A mutant cAMP phosphodiesterase that made it super-activearrow_forwardIn tumor cells Rb protein is hyperphosphorylated. In response to that, will p53 level increase or decrease? Why or why not? new answer pleasearrow_forward
- Epigenetic modification of gene expressiona. always inhibits gene transcription.b. always stimulates gene expression.c. is erased from the DNA following mitotic cell division.d. may sometimes be transmitted from generation to generation.arrow_forwardChoose the correct statements about epigenetic regulation in eukarya Group of answer choices Acetylation of histones increases transcription Methylation of DNA decreases transcription X-inativation in female mammals is accomplished through massive acetylation of the X chromosome Methyl tags on DNA are permanent and cannot be changed.arrow_forwardp53 is a gene / protein often associated with cancer. Why? What does p53 do? What kind of gene is it? Is it associated more with any one particular type of cancer or all cancers? Tell me more about p53, but please do not exceed one typed page.arrow_forward
- You are working in a cell biology lab that investigates non-small cell lung cancer cells, which of these cellular features will be suggestive of senescence in the cells observed? Choose all that apply: Group of answer choices Large flattened morphology Reduced incorporation of 5-bromodeoxyuridine (in DNA replication) Increased p53 expression Decreased expression of p15INK4Barrow_forwardA protein called p53 is another protein involved in controlling cell division. The protein p53 makes sure that if cells aren't functioning correctly, they don't divide anymore. Some people have damage to their p53 DNA and the protein isn't made correctly anymore. What might be a consequence if a person couldn't make the protein p53? A - Their cells would no longer use oxygen to make energy B - Their cells would no longer divide C - Their cells would make too much carbon dioxide D - Their cells could divide out of controlarrow_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_forward
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