BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 10, Problem 7U
Why is cytokinesis an important part of cell division?
a. It is responsible for the proper separation of genetic information.
b. It is responsible for the proper separation of the cytoplasmic contents.
c. It triggers the movement of a cell through the cell cycle.
d. It allows cells to halt at checkpoints.
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Name the phases of the cell cycle. b) During which phases are the chromosomes and then the cytoplasm split, respectively? c) Describe one mechanism that is used to regulate the cell cycle.
In eukaryotic cells, which occurs during the prophase of mitosis?
A. appearance of the nuclear envelope
B. breakup of the nuclear envelope
C. replication of DNA
D. separation of sister chromatids
E. duplication of chromatids
What do you predict would happen in a cell that only underwent the M and S phases of the cell cycle, without the G1 and G2 phases? Give details in your answer that demonstrate you understand the cell cycle.
Chapter 10 Solutions
BIOLOGY
Ch. 10.1 - Prob. 1LOCh. 10.2 - Prob. 1LOCh. 10.2 - Distinguish between homologues and sister...Ch. 10.2 - Prob. 3LOCh. 10.3 - Describe the eukaryotic cell cycle.Ch. 10.4 - Prob. 1LOCh. 10.4 - Prob. 2LOCh. 10.5 - Describe the phases of mitosis.Ch. 10.5 - Explain the importance of metaphase.Ch. 10.5 - Compare cytokinesis in plants and animals.
Ch. 10.6 - Prob. 1LOCh. 10.6 - Prob. 2LOCh. 10.7 - Prob. 1LOCh. 10.7 - Prob. 2LOCh. 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. 2ACh. 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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- What is the purpose of mitosis? a It ensures that new nuclei have an exact copy of DNA. b It ensures the reproduction of mitochondria and chloroplasts. c It guarantees that each daughter cell has half the amount of DNA of parent cells. d It prevents the occurrence of cancer cells.arrow_forwardWhich statement is NOT true about mitosis? A Mitosis uses a 2n parent cell to form daughter cells containing 1n chromosomes.Mitosis is a process that duplicates and divides the nuclear contents only. B Mitosis produces two daughter cells that contain the same number of chromosomes as the parent cell. C Mitosis uses a 2n parent cell to form daughter cells containing 1n chromosomes. D Mitosis is nuclear division plus cytokinesis.arrow_forwardAt which point in the cell cycle are cells the smallest? a. the beginning of G1 b. S c. G2 d. the beginning of mitosisarrow_forward
- How do Cyclins work? a. They are kinases that phosphorylate key proteins at different points in the cell cycle. b. They are transcription factors that regulate the transcription of genes required at different stages of the cell cycle. c. They stop progression of cells through the cell cycle. d. They bind and activate kinases related to progress through the cell cycle.arrow_forwardillustrates the significant contrasts between the two mechanisms of cell division?arrow_forwardWhat is the role of cohesin proteins in cell division? a. They organize the DNA of the chromosomes into highly condensed structures. b. They hold the DNA of the sister chromatids together. c. They help the cell divide into two daughter cells. d. They connect microtubules and chromosomes.arrow_forward
- There are anticancer that are used to prevent the formation of spindle fibers. Why do you think this is effective in treating cancer? What might happen if certain phases of the cell cycle do not function well? Make a reflective essay about cell division.arrow_forwardGive two examples of events that can regulate the cell cycle externally.arrow_forwardWhich statement best summarizes why the cell theory was developed over time?arrow_forward
- During which phase of mitosis do the chromatids become chromosomes? A. Prophase B. Telophase C. Cytokinesis D. Metaphasearrow_forwardWhich describes a role for the kinetochore microtubules during mitosis? Polymerization drives anaphase A. Depolymerization drives anaphase B. Depolymerization drives anaphase A. Depolymerization drives separation of centrosomes (spindle poles) during prometaphase.arrow_forwardImagine a cell entered mitosis but was unable to make microtubules. At what stage of mitosis would it remain?arrow_forward
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