Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 12, Problem 5TYU
Identify at least two events in the cell cycle that must be completed successfully for daughter cells to share an identical complement of chromosomes.
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The cell cycle control system is a cycling set of molecules in the cell that triggers and coordinates key events in the cell cycle. This is all controlled by growth factors.
a) Identify the major checkpoints in a cell and its function. b)Explain the role of the growth factor.
For an organism with 3 pairs of chromosomes (6 total chromosomes, 2n = 6), draw chromosome diagrams for the following phases of the mitotic cell cycle: G1 of interphase, prophase, metaphase, anaphase & telophase. Be sure to draw the correct number of chromosomes and the correct number of chromatids per chromosome. Use a different color to represent each chromosome type (for example, use blue to indicate all copies of chromosome 1, red for all copies of chromosome 2, & green for all copies of chromosome 3).
Differentiate (in a general sense) cell activities occuring during Interphase and the Mitotic Phase (you could use just 1 word to describe each phase):
Chapter 12 Solutions
Biological Science (7th Edition)
Ch. 12 - 1. Which statement about the daughter cells...Ch. 12 - After S phase, what comprises a single chromosome?...Ch. 12 - Progression through the cell cycle is regulated by...Ch. 12 - 4. What major events occur during anaphase of...Ch. 12 - 5. Identify at least two events in the cell cycle...Ch. 12 - 6. What evidence suggests that during anaphase,...Ch. 12 - 7. Evaluate each of the following defects. Which...Ch. 12 - Prob. 8TYUCh. 12 - Prob. 9TYPSSCh. 12 - Prob. 10TYPSS
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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
- 1) List and briefly describe three major cell cycle checkpoints. For each checkpoint,predict the consequences if the checkpoint fails to work properly. 2) Explain why mitosis does not produce genetic variation and how meiosis leads to the production of tremendous genetic variation.arrow_forwardIf the most basic function of the cell cycle is to accurately duplicate the DNA in the chromosomes and distribute the copies precisely to the daughter cells, why are there gaps between S-phase and M-phase?arrow_forwardCyclin B and Cdk1 make up MPF which is important to the regulation and initiation of mitosis. : a) True b) Falsearrow_forward
- In cell cycle, under the control system, explain in details (including roles of related proteins): a) How mitogens trigger transcription of genes for entry into S phase. b) During M phase, how M-Cdk can trigger cohesin dissociation as well as Mad2 triggers mitotic checkpoint to delay metaphase to anaphase transition.arrow_forwardDuring cell cycle there are checkpoints. They best way to define a checkpoint is? a) a location within the cell where proteins are inspected for mutations b) G1, S, G2, prophase metaphase anaphase or telophase c) specific stages where further progress of the cell cycle can be halted d) any step where the cell cycle is blocked by a mutated proteinarrow_forwardA parent cell that has 70 chromosomes undergoes cell division and produces daughter cells that have 70 chromosomes. The resulting daughter cells can be any of the following cell except for:arrow_forward
- Which of the following is true with respect to cyclins and CDKs? A) CDKs promote progression of the cell cycle, cyclins function to inhibit progression of the cell cycle B) CDKs are the checkpoints in the cell cycle, and when bound to cyclins, they stop progression of the cell cycle C) CDKs will only work to promote progression of the cell cycle when complexed with their designated cyclins D) CDKs are rarely expressed during a cell's cycle, unless cyclins are present to act as transcription factors .arrow_forwardThe table presents the criteria to be used in comparing motosis and meiosis. Provide the missing information. Mitosis Meiosis chromosome number of daughter cells number of cell divisions stages presence of synapses presence of crossing over cell type that undergoes cell division number of daughter cells formed DNA content of cells at start of division DNA content of daughter cells genetic consequencesarrow_forwardCell growth and cell division use a checkpoint at a certain stage of the process. What would be he consequence(s) of a defective checkpoint if the spindle fiber fails to attach to the sister chromatid during meiosis?arrow_forward
- Draw a diagram of the cell cycle and label the phases (G1, S, G2, M). Indicate the phase when chromosome duplication occurs.arrow_forwardMatch the stage of mitosis with the following key events.arrow_forwardillustrate and briefly describe the alignment, pairing, and disjunction ofsister chromatids during mitosis. Include the molecular complexes cohesin and shugoshin and the enzyme separase.arrow_forward
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