BIOLOGY 11E CHAPTERS 1-19
11th Edition
ISBN: 9781307365849
Author: Raven
Publisher: MCG CUSTOM
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Textbook Question
Chapter 10, Problem 8U
What steps in the cell cycle represent irreversible commitments?
a. The S/G2 checkpoint
b. The G1/S checkpoint
c. Anaphase
d. Both b and c are correct.
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What part of the cell cycles are checkpoints that regulate the transition from anaphase to telophase?
A.
M checkpoint
B.
G2 checkpoint
C.
G1 checkpoint
D.
S checkpoint
If the M checkpoint is not cleared, what stage of mitosis will be blocked? a. prophase b. prometaphase c. metaphase d. anaphase
Which of the following would be expressed at varying levels during different parts of the cell cycle?
A. cyclin-dependent kinases
B. RNA polymerase
C. cyclins
D. Glycolysis enzymes
Chapter 10 Solutions
BIOLOGY 11E CHAPTERS 1-19
Ch. 10 - Binary fission in prokaryotes does not require the...Ch. 10 - Chromatin is composed of a. RNA and protein. b....Ch. 10 - What is a nucleosome? a. A region in the cells...Ch. 10 - What is the role of cohesin proteins in cell...Ch. 10 - The kinetochore is a structure that functions to...Ch. 10 - Separation of the sister chromatids occurs during...Ch. 10 - Why is cytokinesis an important part of cell...Ch. 10 - What steps in the cell cycle represent...Ch. 10 - Cyclin-dependent kinases (Cdks) are regulated by...Ch. 10 - Prob. 2A
Ch. 10 - Genetically, proto-oncogenes act in a dominant...Ch. 10 - The metaphase to anaphase transition involves a....Ch. 10 - The main difference between bacterial cell...Ch. 10 - In animal cells, cytokinesis is accomplished by a...Ch. 10 - Regulation of the cell cycle is very complex and...Ch. 10 - Review you knowledge of signaling pathways...Ch. 10 - Compare and contrast how mutations in cellular...
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- Chromosomes are duplicated during what portion of the cell cycle? a. G1 phase b. S phase c. prophase d. prometaphasearrow_forwardAt what point in the cell cycle does the amount of DNA double in a cell? A. G1 phase B. S phase C. Cytokinesis D. Metaphase 25.arrow_forwardWhich negative regulatory molecule can trigger cell suicide (apoptosis) if vital cell cycle events do not occur? a. p53 b. p21 c. retinoblastoma protein (Rb) d. cyclin-dependent kinase (Cdk)arrow_forward
- Which cell cycle checkpoint allows damaged DNA to be repaired before it is passed on to daughter cells? a. G1 b. G2 c. S d. mitoticarrow_forwardDuring the cell cycle, in which sub-phase(s) of interphase does the cell replicate its chromosomes? a. G1 phase b.S phase Oc. G2 phase Od. G1 and G2 phases Oe. G1, S, and G2 phases е. QUESTION 48 With regard to the process of mitosis, which of the following pairs is NOT matched correctly? a. Interphase - the cell grows, chromosomes replicate, and proteins are produced to prepare the cell to divide b. Prophase - chromosomes condense, and the nuclear membrane dissociates/breaks down c. Metaphase - chromosomes move toward opposite poles (or sides) of the cell d. Anaphase - sister chromatids separate e. Telophase - two distinct nuclei are formed; this is the stage immediately before cytokinesisarrow_forwardWhich 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_forward
- Choose 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_forwardThis begins early in the telophase and continues after the nucleus has formed in the daughter cells. a. cytokinesis b. interphase c. apoptosis d. differentiationarrow_forwardDuring the cell cycle, in which sub-phase(s) of interphase do restriction checkpoints exist to monitor the progress of the cell as it prepares to divide? O a. G₁ phase O b. S phase O c.G2 phase d. G₁ and G2 phases O e. G₁, S, and G2 phasesarrow_forward
- Which 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_forwardIn a normal cell, signals from the external environment play a role in determining whether the cell will grow or replicate during what phase(s) of the cell cycle? A. The S phase only B. The G1 phase only C. The G2 phase only D. Both the G2 and S phases E. All phases of the cell cyclearrow_forwardDuring which phase of the cell cycle is the genetic material duplicated? a. Metaphase b. Anaphase c. Telophase d. Interphase e. Prophasearrow_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