Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 12, Problem 10TYK
Summary Introduction
Introduction: Cell division results in two daughter cells from a single parent cell. There are many phases of the cell cycle. Cell cycle is divided into interphase and mitotic phase. Interphase is divided into gap1 (G1) phase, synthetic phase (S-phase), and gap 2 (G2) phase.
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What is a main difference between onion root tip (plant cell) mitosis and whitefish blastula (animal cell) mitosis?
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Chapter 12 Solutions
Study Guide for Campbell Biology
Ch. 12 - a. How many chromosomes are in your somatic cells?...Ch. 12 - a. What event is common to all three subphases of...Ch. 12 - The following diagrams will depict the five stages...Ch. 12 - a. What is MPF? b. Describe the relative...Ch. 12 - In the following photomicrograph of onion root tip...Ch. 12 - Describe one chromosome as it proceeds through an...Ch. 12 - Draw a sketch of one half of a mitotic spindle....Ch. 12 - FILL IN THE BLANK: Identify the appropriate phase...Ch. 12 - FILL IN THE BLANK: Identify the appropriate phase...Ch. 12 - Prob. 3TYKF
Ch. 12 - Prob. 4TYKFCh. 12 - Prob. 5TYKFCh. 12 - Prob. 6TYKFCh. 12 - FILL IN THE BLANK: Identify the appropriate phase...Ch. 12 - Prob. 8TYKFCh. 12 - Prob. 9TYKFCh. 12 - FILL IN THE BLANK: Identify the appropriate phase...Ch. 12 - One of the differences between prokaryotic binary...Ch. 12 - Prob. 2TYKCh. 12 - Prob. 3TYKCh. 12 - Prob. 4TYKCh. 12 - Prob. 5TYKCh. 12 - In eukaryotic organisms, chromosomes are...Ch. 12 - Prob. 7TYKCh. 12 - Prob. 8TYKCh. 12 - Prob. 9TYKCh. 12 - Prob. 10TYKCh. 12 - During cell division, cyclin combines with...Ch. 12 - Prob. 12TYKCh. 12 - Prob. 13TYKCh. 12 - Prob. 14TYKCh. 12 - Vinblastine is a chemotherapeutic drug used to...
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- One 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_forwardA scientist is studying control of the cell cycle. To do this, she decides to fuse cells in different phases of the cell cycle together, and then study the results. She fuses a frog cell in the G1 phase with a frog cell in the M phase. What do you think will happen?arrow_forwardWhich of the following is not a reason for mitosis? A. Keep cells small B. Replace damaged cells C. Produce new genes and traits D. Growth of organismsarrow_forward
- Which of the following best describes a gene that codes for a tumor-suppressor protein? a. One that helps to prevent progression through the cell cycle. b. One that helps prevent apoptosis. c. One that codes for a DNA repair enzyme. d. One that supports part of a growth factor signaling pathway.arrow_forwardWhat kind of daughter cells will result if the "Normal cell" above goes through mitosis? A) two normal cells B) two cancer cells C) two specialized cells D) one cancer cell and one normal cellarrow_forwardWith regard to cancer cells, which of the following statementsare true?A. Cancer cells are clonal, which means they are derived from asingle mutant cell.B. To become cancerous, cells usually accumulate multiplegenetic changes that eventually result in uncontrolledgrowth.C. Most cancers are caused by oncogenic viruses.D. Cancer cells have lost the ability to properly regulate celldivision.arrow_forward
- You remove cyclin from a cell during G2 a single time and then leave the cell alone. What is the consequence? Group of answer choices A. the cells exits mitosis into G1 B. the cell can never enter mitosis C. the cell immediately enters mitosis D. the cell's entry into mitosis is delayedarrow_forwardWhich of the following statements correctly describes a characteristic of tumor-suppressor gene? a) they are frequently overexpressed in cancerous cells. b) they are cancer-causing genes introduced into cells by viruses. c) they encode proteins that help prevent uncontrolled cell growth. d) they often encode proteins that stimulate the cell cycle.arrow_forwardPart A and B A. What is the normal function of the Rb protein? A) Rb prevents the cell cycle from proceeding unless the cell is prepared to do so B) Rb causes cells to undergo apoptosis C) Rb promotes Cdk activation D) Each of the other selections is true E) Rb repairs damaged DNA B. How do tumors arise? A) When cell proliferation occurs at a higher rate than cell death B) When someone is infected with a tumor from another person C) When cell death occurs at a very high rate D) When cell proliferation occurs at a very low ratearrow_forward
- As a result of lost cell cycle control, a cell may a. immediately die b. continously divide to form a tumor c. prematurely stop dividing d. after itself into a different cell typearrow_forwardYou add extra cyclin to a cell during early G2. What is the consequence? Group of answer choices A. the cell's entry into mitosis happens more quickly B. the cell's entry into mitosis is delayed C. the cell can never enter mitosis D. the cells exits mitosis into G1arrow_forwardThe 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.arrow_forward
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