BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Textbook Question
Chapter 8, Problem 7MCQ
Why are cell cycle control checkpoints so important?
| a. | Because they determine how quickly a cell’s DNA gets copied |
| b. | Because they ensure that metaphase always follows anaphase |
| c. | Because they help prevent cells with damaged DNA from dividing |
| d. | Because they ensure that mitosis occurs continuously in all body cells |
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Students have asked these similar questions
During 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 cytokinesis
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
Cell cycle checkpoints are found in the following phases EXCEPT:
a. G1 phase
b. S-phase
c. G2 phase
d. M phase
Chapter 8 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 8.1 - Explain the roles of mitotic cell division,...Ch. 8.1 - Prob. 2MCCh. 8.2 - Prob. 1MCCh. 8.2 - What are the steps of DNA replication?Ch. 8.2 - Prob. 3MCCh. 8.2 - Prob. 4MCCh. 8.3 - Prob. 1MCCh. 8.3 - Prob. 2MCCh. 8.4 - Prob. 1MCCh. 8.4 - Prob. 2MC
Ch. 8.5 - What are the three main events of the cell cycle?Ch. 8.5 - Prob. 2MCCh. 8.5 - Prob. 3MCCh. 8.5 - What happens during each stage of mitosis?Ch. 8.5 - Prob. 5MCCh. 8.6 - Prob. 1MCCh. 8.6 - Prob. 2MCCh. 8.6 - Prob. 3MCCh. 8 - A DNA is placed in a test tube containing...Ch. 8 - A chromosome is made of a. DNA. b. chromatin. c....Ch. 8 - Which of the following explains why binary fission...Ch. 8 - If you were to look at a sample of actively...Ch. 8 - Which stage of the cell cycle occurs immediately...Ch. 8 - What would happen to an animal cell if interphase...Ch. 8 - Why are cell cycle control checkpoints so...Ch. 8 - Prob. 1WIOCh. 8 - Prob. 2WIOCh. 8 - Prob. 3WIOCh. 8 - Sketch and describe the evenst that occur when a...Ch. 8 - List the ways that binary fission is similar to...Ch. 8 - Prob. 6WIOCh. 8 - Prob. 7WIOCh. 8 - Label the arrows connecting the chromosome images...Ch. 8 - Prob. 9WIOCh. 8 - Prob. 10WIOCh. 8 - Prob. 11WIOCh. 8 - Prob. 12WIOCh. 8 - Prob. 1SLCh. 8 - Add DNA polymerase, nucleotides, and complementary...Ch. 8 - Add cell growth and tissue repair to the concept...Ch. 8 - Review the Survey the Landscape figure in the...
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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
- Progression 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_forwardIf the M checkpoint is not cleared, what stage of mitosis will be blocked? a. prophase b. prometaphase c. metaphase d. anaphasearrow_forwardDNA 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. interphasearrow_forward
- In a cell cycle Select one: a. DNA is replicated and passed to homologous chromosomes during interphase b. DNA is replicated and passed to daughter cells during mitotic phase c. DNA and RNA are replicated and passed to parent cells during interphase d. DNA and RNA are replicated and passed to sister chromatids during mitotic phasearrow_forward1)Describe what takes place in the three phase of interphase. 2) what are cell cycle checkpoints? Where are they found in the cell cycle? What do they check for?arrow_forwardIn the mitosis experiment, in what stage were most of the onion root tip cells in? Based on what you know about cell cycle division, what does this imply about the life span of a cell? Were there any stages of the cell cycle that you did not observe? How can you explain this using evidence from the cell cycle?arrow_forward
- 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 Aarrow_forwardBPA is a chemical compound that has historically been used in themanufacture of plastic products. However, cells often mistake BPAcompounds for hormones that accelerate the cell cycle. Because ofthis, BPA is associated with an increased risk of certain cancers. Question: How might BPA interact with the cell cycle and its checkpoints?arrow_forwardTwo cells from an animal’s heart are removed and studied. One cell has twice the amount of DNA as the other cell. Which statement is best explains why the second cell has twice the amount of DNA as the first? A The cell is in G1 and the extra DNA is needed now that the cell entering mitosis. B The cell is in G2 of interphase and now has all the DNA it needs function correctly. C The cell has just gone through S phase of interphase and will eventually divide in mitosis. D The cell is in G0 and no longer in a dividing state and has all the DNA needs to function correctly.arrow_forward
- During the cell cycle there are three checkpoints. Match each description with the correct checkpoint. Requires growth signals and checks there are no mutation in the DNA Checks that DNA is properly replicated and that all the organelles and proteins needed for division are present Ensures that all the chromosomes are lined up and accounted for A. G1/S B. S/G2 C. G2/M D. Metaphase/Anaphase E. Anaphase/Telophasearrow_forwardOne 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_forwardThe process of cellular reproduction or divisions is a heavily regulated process for a number of different reasons. In the case of the eukaryotic cell there are a number of different checkpoints that a cell must pass before it can continue on. Please explain what those checkpoints are looking for and where those checkpoints are in the cell cycle. If a cell doesn’t pass any of these checkpoints what happens to those cells?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