EP HUMAN BIOLOGY-MODIFIED MASTERING
8th Edition
ISBN: 9780134326436
Author: Johnson
Publisher: PEARSON CO
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Chapter 17, Problem 9TY
Summary Introduction
Introduction:
In order for a cell to divide, it undergoes a cycle known as the cell cycle. It consists of Interphase and Mitosis. Interphase has three subphases: G1, S, and G2. To make sure the processes in the cell cycle are going as expected, the cell has its own mechanisms to check this progress. These are called cell cycle checkpoints. If any abnormal events have occurred, they are corrected or the cell cycle is halted. There are three major checkpoints and they occur during the following phases: G1, G2, and metaphase of mitosis.
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Sometimes a cells "deal with" damaged DNA by just killing off the cell. This special cellular suicide is called apoptosis. Usually, the cell cycle has checkpoints that prevent damaged/mutated cells from proceeding to the next phase, though. When these checkpoints don't work, apoptosis can be used. If apoptosis did NOT occur, how might the damaged DNA impact the rest of the cell cycle?
A. it may not complete the cell cycle correctly
B. new cells containing damaged DNA may be made
C. the cell may enter G0
D. all of the above are options
E. A and B, but not C
F. B and C, but not A
During what phase of the cell cycle is DNA synthesized?
(B) Diagram the four phases of the cell cycle. (2 pt.) (C) On the same diagram, indicate the main events that occur in each cell cycle phase. (3 pts.) (D) Name and describe the function of the four core cell cycle control complexes and indicate on the diagram above where they function in the cell cycle.
Chapter 17 Solutions
EP HUMAN BIOLOGY-MODIFIED MASTERING
Ch. 17 - How do you feel about the creation and then...Ch. 17 - How far should we go–to what lengths and at what...Ch. 17 - Describe how DNA is replicated before cell...Ch. 17 -
2. Compare and contrast the processes of...Ch. 17 - Explain what mutations are and the role of DNA...Ch. 17 - Name the four phases of mitosis and describe...Ch. 17 -
5. Explain why only one large egg is formed...Ch. 17 - Describe what is meant by selective gene...Ch. 17 - Explain how factors present in the environment can...Ch. 17 - Describe how ribosomes contribute to the formation...
Ch. 17 - Prob. 9CRCh. 17 - Prob. 10CRCh. 17 - What would be the outcome if a cell completed...Ch. 17 - Prob. 2TYCh. 17 - Prob. 3TYCh. 17 - Prob. 4TYCh. 17 - Which of the following are listed in order from...Ch. 17 - Prob. 6TYCh. 17 - Which is likely to be the shortest chain of...Ch. 17 - How many different amino acids could be encoded if...Ch. 17 - Prob. 9TYCh. 17 - Why do cells within an organism differentiate,...Ch. 17 - Which method of cloning is most similar to the way...Ch. 17 - Prob. 12TYCh. 17 - Prob. 13TYCh. 17 - Prob. 14TYCh. 17 -
15. How does the production of sperm differ from...Ch. 17 - Prob. 1AWKCh. 17 - Prob. 2AWKCh. 17 - Prob. 3AWKCh. 17 - Prob. 4AWKCh. 17 - Mitochondria contain their own DNA that is...Ch. 17 - Bacteria can reproduce by simple cell division....
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- During which stage of the cell cycle would a cell contain the least total amount of DNA?arrow_forward3) Examine the graph showing the relative percentage normal and cancer cells spend in various stages of the cell cycle. Based on the information in the graphs, infer how cancer cells differ from typical, noncancerous cells. Select ALL that apply. A) Cancer cells do not replicate their DNA. B) Cancer cells replicate their DNA too quickly. C) Cancer cells do not go through interphase during their cell cycle. D) Cancer cells spend more time dividing compared to typical cells. E) Cancer cells do not always grow to the same size as typical cells. more than 1 answer. not gradedarrow_forward4) Describe in detail how p53 and MDM2 regulate cell division in a normal, healthy cell. You should describe 1) how these proteins cooperate to allow a cell to go through the cell cycle, 2) how they cooperate to stop the cell cycle, and 3) how they allow the cell cycle to continue again after having stopped it initially. You may use point form if you want.arrow_forward
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- Question 1) which cytoskeleton supports the cilia in moving mucous laden with foreign particles? Question 2) What will happen in a cell if the DNA ligase gene is mutated Question 3) Describe how is prophase mitosis different from prophase of meiosis I? Question 4) What happens to acetylcholine after it evoked activation of nicotinic acteylcholine receptors in the neuromusclar function?arrow_forwardWhat is the purpose of checkpoint in cell cyclearrow_forwardWhat would be the most likely effect of a mutation that causes cyclin B to be unable to bind to CDK? a. Cells pass through the G2/M checkpoint and enter mitosis even when DNA has not been replicated. b. Cells never pass through the G1/S checkpoint. c. Cells pass through mitosis more quickly than nonmutated cells. d. Cells fail to pass through the G2/M checkpoint and do not enter mitosis.arrow_forward
- Describe the purpose of cell cycle checkpoints.arrow_forwardAttachment of the mitotic spindle fibers to the kinetochores is a characteristic of which stage of mitosis? a. prophase b. prometaphase c. metaphase d. anaphasearrow_forward28. When studying living cells in a laboratory, rescarchers sometimes use drugs as a way to make cells remain at a particular stage of the cell cycle A drug that inhibits cytokinesis would leave cells arrested at which phase in the cell cycle? A) Interphase B) Telophase C) Anaphase D) Prophase E) Metaphase 29. An epigenetics modification is where: A) The DNA sequence of a gene is changed, altering gene expression B) A chemical modification (ie methylation) of DNA occurs that alters gene expression C) Gene expression is permanently changed over the course of many generations D) Both A and C E) Both B and C 30. A very rare dominant allele that causes the little finger to be bent has a penetrance value of 80% This means that? A) 80% of the total population does not have a bent little figure B) 80% of all heterozygotes carrying the allele will have a bent little finger C) 80% of the total population carries the allede for bent little finger D) 80% of all homozygous individuals carrying the…arrow_forward
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cell division of meiosis and mitosis; Author: Stated Clearly;https://www.youtube.com/watch?v=A-mFPZLLbHI;License: Standard youtube license