EBK BIOLOGY
4th Edition
ISBN: 8220102797376
Author: BROOKER
Publisher: YUZU
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Chapter 15, Problem 3TY
Summary Introduction
Introduction: Checkpoints are the critical regulatory points found in the eukaryotic cell cycle. Checkpoint proteins are present at the checkpoints to determine the condition of the cell prior to cell division. These proteins delay the advancement of the cell cycle by the formation of active cyclin/cdk complexes.
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Students have asked these similar questions
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.
Which of the following occurs during the G2 stage of interphase?
a.The cell undergoes mitosis.
b.The cell produces the proteins and cellular components needed for division.
c.The cell undergoes DNA replication.
d.The cell grows and produces molecules for DNA replication.
In a healthy cell, which of the following proteins will be activated in order to suppress cell division if the cell is not ready or should not divide?
Select one:
a.
p53
b.
cdk
c.
cyclin
d.
seperase
e.
mitogen
Chapter 15 Solutions
EBK BIOLOGY
Ch. 15.1 - Researchers usually treat cells with drugs that...Ch. 15.1 - Which phases make up interphase?Ch. 15.1 - Prob. 1BCCh. 15.1 - Prob. 1EQCh. 15.1 - The Eukaryotic Cell Cycle CoreSKILL What...Ch. 15.1 - Prob. 3EQCh. 15.2 - Prob. 1CCCh. 15.2 - Prob. 2CCCh. 15.2 - Mitotic Cell Division Concept Check: What are the...Ch. 15.3 - Prob. 1CC
Ch. 15.3 - Sexual Reproduction Concept Check: What is the...Ch. 15.4 - Variation in Chromosome Structure and Number...Ch. 15 - Prob. 1TYCh. 15 - Prob. 2TYCh. 15 - Prob. 3TYCh. 15 - Prob. 4TYCh. 15 - Prob. 5TYCh. 15 - Which of the following is not an event of anaphase...Ch. 15 - Prob. 7TYCh. 15 - Which of the following statements accurately...Ch. 15 - Prob. 9TYCh. 15 - Aneuploidy may be the result of a. duplication of...Ch. 15 - Prob. 1CQCh. 15 - Prob. 2CQCh. 15 - Prob. 3CQCh. 15 - Prob. 1COQCh. 15 - A diploid eukaryotic cell has 10 chromosomes (5...
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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
- In cancer, cells divide out of control. Thus, chemicals that interfere with cell division might be used to stop cancer cells. How many of the following might stop human cancer cells? I. A chemical that prevents the phosphorylation of lamins. II. A chemical that prevents microtubule shortening. III. A chemical that prevents actin-myosin contraction. IV. A chemical that prevents the dephosphorylation of lamins. O 2 O 4 O 1arrow_forwardThe role of the APC to get past the metaphase/ anaphase checkpoint is... Select one: a. to initiate gene expression of proteins involved in DNA replication. b. Add phosphates to the MPF to cause intermediate filaments to break down, free DNA to move in the cell. c. to add phosphate to intermediate filaments causing them to reform into the nuclear envelope d. add ubiquitin to cohesins allowing the sister chromatids to splitarrow_forwardSometimes 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 Aarrow_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 functions of centrioles include ...... a.serving as the site for ribosomal RNA synthesis b.producing ATP c.providing a whiplike beating motion to move substances along cell surfaces d.organizing the mitotic spindle in cell divisionarrow_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_forward
- Synthesis phase in the cell cycle is called so, because of the synthesis of more: A. RNA B. RNA and proteins C. DNA D. Glucosearrow_forwardWhich of the following is true of normal adult cells but NOT cancer cells? A. Cell death after a finite number of cell divisions B. Contact with other cells increases likelihood of division C. Large amount of telomerase present D. Do not care about cell density while culturearrow_forwardIf we looked into the nucleus of a normal somatic cell and if we condensed the chromatin, in which phase of the cell cycle would the cell be in for the chromosomes to have this specific structure? a. G0 b. G1 c. S d. G2 e. none of the abovearrow_forward
- Cyclins and cyclin-dependent kinases regulate progression through the cell cycle. Which of the following determines progression beyond the restriction point in G1? Select one: a. The presence of cyclin and Cdk. O b. The presence of cyclin. c. Phosphorylation of RB by Cdk. d. The presence of external signals from growth factors. e. The absence of cyclin.arrow_forwardName: Period: Date: Cell Cycle Cell growth and division occurin a regular cycle. This cycle is divided into fourphases: G1, S, G2, and M. The diagram shows this cycle, along with events that occur in each phase. Follow the prompts below. v Color the phase in which most cell growth occurs BLUE v Color the phase in which DNA replication occurs RED. v Color the phase in which preparation for mitosis occurs in YELLOW. v Color the phase in which mitosis and cytokinesis G2 occur in GREEN. P 1. Which three phases make up interphase? GI M 2. Which of the following best describes cancer? Circle the correct answer. uncontrolled cell growth cells stop growing 3. If a dog has 72 chromosomes in a SOMATIC cell, how many chromosomes will its daughter cells have after meiosis_? mitosis_?arrow_forwardWhich of the following is least likely to result in the formation of a cancerous cell? A Dysfunction results in the permanent activation of a cell division pathway in the absence of the appropriate ligand. B с D Separation of chromatids during mitosis occurs without all centromeres being attached to spindle fibers from both poles. A dysfunction in a cell cycle checkpoint prevents a cell from entering the S phase. A dysfunction causes the inability to produce cancer-suppressing proteins.arrow_forward
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