Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 10, Problem 7TYK
Summary Introduction
Introduction:
Cell division is a process where the cell divides to form two daughter cells. It enables the growth reproduction and repair of cells and tissues. The cell cycle includes the G1, S, G2, and M stages. The M phase is the main mitotic phase where nuclear division takes place.
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Vinblastine is a standard chemotherapeutic drug used to treat cancer. Because it
interferes with the assembly of microtubules, its effectiveness must be related to
Select one:
a. inhibition of DNA synthesis.
O b. myosin denaturation and inhibition of cleavage furrow formation.
c.
suppression of cyclin production.
Od. inhibition of regulatory protein phosphorylation.
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The metaphase to anaphase transition involves
a. new force being generated to pull the chromatids apart.
b. an increase in force on sister chromatids to pull them apart.
c. completing DNA replication of centromeres allowing chromosomes to be pulled apart.
d. loss of cohesion between sister chromatids.
DNA or deoxyribonucleic acid is the hereditary material in humans and almost all other organisms. Nearly every cell in a person's body has the same DNA. This, in turn, replicates in the non-dividing phase of the cell cycle which is
a. telophase
b. cytokinesis
c. metaphase
d. interphase
Chapter 10 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 10.1 - What are the three interrelated systems that...Ch. 10.1 - Prob. 2SBCh. 10.1 - Prob. 3SBCh. 10.1 - Prob. 4SBCh. 10.2 - Compare the chromosome content of daughter cells...Ch. 10.2 - Prob. 2SBCh. 10.2 - Prob. 3SBCh. 10.3 - How does spindle formation differ in animals and...Ch. 10.3 - Prob. 2SBCh. 10.4 - Prob. 1SB
Ch. 10.4 - Prob. 2SBCh. 10.4 - What is an oncogene? How might an oncogene affect...Ch. 10.4 - Prob. 4SBCh. 10.5 - Prob. 1SBCh. 10.5 - Prob. 2SBCh. 10 - During the cell cycle, the DNA mass of a cell:...Ch. 10 - A tumor suppressor protein, p21, inhibits Cdk1....Ch. 10 - A major difference between hereditary information...Ch. 10 - The major microtubule organizing center of the...Ch. 10 - Prob. 5TYKCh. 10 - Which of the following statements about mitosis is...Ch. 10 - Prob. 7TYKCh. 10 - Which of the following statements about cell cycle...Ch. 10 - Which of the following is not a characteristic of...Ch. 10 - Which of the following does not accurately...Ch. 10 - In bacteria: a. several chromosomes undergo...Ch. 10 - Prob. 12TYKCh. 10 - Discuss Concepts A cell has 38 chromosomes. After...Ch. 10 - Prob. 14TYKCh. 10 - Prob. 15TYKCh. 10 - Apply Evolutionary Thinking The genes and proteins...Ch. 10 - Biologists have long been interested in the...Ch. 10 - Prob. 2ITD
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- The following diagram indicates how the cell cycle progresses in typical human cells: INTERPHASE G₁ MITOTIC (M) PHASE Mitosis Cytokinesis DRUG S (DNA synthesis) G2 Suppose that you are investigating potential drugs that might be used to stop the out of control growth of tumor cells. The following table lists several experimental drugs along with some information about their effect on cells. Predict which stage of the cell cycle might be inhibited by each of the drugs (A through E). COMMENTS Shown to block thearrow_forwardWhich of the following is the primary method by which cyclin proteins are regulated to influence entry into the cell cycle or transition from one stage to the next? A. Transcriptional upregulation and translation followed by targeted ubiquitin-mediated degradation by a proteasome. B. Phosphorylation to regulate the activity of the kinase site. C. An activating phosphorylation and an inactivating phosphorylation. D. All of these are mechanisms that can be used to regulate cyclins.arrow_forwardWhich of the following statements about the cell cycle is TRUE? a. The protein APC blocks cells from entering anaphase b. CDKs are degraded after each cell cycle phase by the addition of a ubiquitin chain to the proteins c. A kinase is a protein that adds a ubiquitin chain to other proteins Cyclin activity is necessary, but not always sufficient, for CDK activation d. Cyclin proteins must be degraded before Cdk proteins can be activatedarrow_forward
- One difference between cancer cells and normal cells is that cancer cells a. are always in the M phase b. are arrested at the S phase of the cell cycle c. are unable to synthesize DNA d. continue to divide even when they are tightly packed togetherarrow_forwardWhich of the following statements about mitosis is incorrect? a. Microtubules from the spindle poles attach to the kinetochores on the chromosomes. b. In anaphase, the spindle separates sister chromatids and pulls them apart. c. In metaphase, spindle microtubules align the chromosomes at the spindle midpoint. d. Cytokinesis describes the movement of chromosomes. e. Both the animal cell furrow and the plant cell plate form at their former spindle midpoint.arrow_forwardProgression through the cell cycle is dependent on both extra- and intracellular conditions. Consider the following conditions. Indicate which checkpoint (s) responds to that condition.a. The cell is large enough to divide.b. The DNA is completely copied during S phase.c. The cell is receiving positive cues from neighbors.d. The DNA is damaged.e. The cell has enough energy reserves to divide.f. Are all the sister chromatids correctly attached to spindle microtubules?arrow_forward
- Which of the following statements is FALSE? A. Centrosomes are anchor points for microtubules and are essential to form the mitotic spindle. B. In the eukaryotic cell cycle the cell spends much more time in the interphase than in the mitotic phase. C. In telophase two nuclear envelopes are fully formed and the cell splits in two via cytokinesis. D. The contraction of the kinetochore microtubules leads to the separation of the sister chromatids during anaphase. E. In the prophase chromatin condenses into X-shaped chromosomes.arrow_forwardPassage of cells from G1 through R to S depends on the interaction of various signal molecules, proteins and enzymes which regulate the cell cycle. Imagine I have just induced a mutation in a cell line which prevents the breakdown of the cyclin molecule we discussed. Which of the following events do you predict will happen? circle all that apply Select one or more: a. Uncontrolled cell replication may result b. Retinoblastoma protein will be continuously active c. The cells will be stuck in G1 phase d. The cells will begin to replicate their DNA e. Cyclin dependent kinase (Cdk) will be continuously activearrow_forwardWhich of the following statements correctly identifies the difference between plant and animal cell division? Select one: a. The cell walls of plants prevent the process of cytokinesis. b. Plants cells lack centrioles, and they form a cell plate during cytokinesis. c. Both plant and animal cells undergo mitosis and cytokinesis, but they lack the interphase. d. Plant cells lack centromeres, and they form a cell wall to produce two daughter cells.arrow_forward
- Which of the following statements is true regarding cell cycle regulators? a. Cyclins determine which proteins each Cdks will act on. b. Cdks check the DNA for damage and repairs it. c. Cyclin binding to Cdks will result to Cdk inactivation. d. Cyclin levels remain constant through the cell cycle.arrow_forwardThe growth period of the cycle is considered as the interphase in which one of the prominent parts is that time wherein the cells make a copy of the genetic material in the form of nuclear DNA. This is particularly termed as a. synthesis b. Gap 1 c. Gap 2 d. Interphasearrow_forwardIn the image, you can see one cell that is in the process of mitosis. (Note that chromosomes are stained dark blue.) In which stage is this cell currently? A. Telophase B. Metaphase C. Interphase D. Prophase E. Cytokinesis F. Anaphasearrow_forward
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