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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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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- The individual chromosomes become visible with a light microscope during which stage of mitosis? a. prophase b. prometaphase c. metaphase d. anaphasearrow_forwardWhat is necessary for a cell to pass the G2 checkpoint? a. cell has reached a sufficient size b. an adequate stockpile of nucleotides c. accurate and complete DNA replication d. proper attachment of mitotic spindle fibers to kinetochoresarrow_forwardWhat is a critical event that occurs during S phase of the cell cycle?a. Cells decide whether or not to divide.b. DNA replication produces pairs of sister chromatids.c. The chromosomes condense.d. The single nucleus is divided into two nuclei.arrow_forward
- At which point in the cell cycle are cells the smallest? a. the beginning of G1 b. S c. G2 d. the beginning of mitosisarrow_forwardDiscuss the phases in Mitotic cell division Why do cells undergo mitosis?arrow_forwardDo all cells undergo cell cycle? Why or why not? What is the importance of cell cycle in living organisms? Expoundarrow_forward
- What occurs during the S phase of the cell cycle? a. The cytoskeleton is dismantled. b. The cell accumulates the building blocks of chromosomal DNA. c. Chromosomes are duplicated.arrow_forwardHow 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_forwardWhat is a chromosome? How many chromosomes are in humans? 2.- What are the phases of the cell cycle? Why are important? 3.- a: What is the interphase ? b: Please explain the phases of the interphase. 4.- Why the cells are capable to maintain the homeostasis? 5.- Please name the organelles in the cell, and explain Golgi Apparatus, and Nucleolus: __________________.arrow_forward
- Scientists are able to isolate cells in various phases of the cell cycle. During an experiment in which Dr. Patrick McGroyn is causing cultured tumor cells to go through mitotic cell division, he isolates a group of cells that contain one and a half times more DNA than cells isolated in the G1 phase have. What phase must these cells be in? How do you know?arrow_forwardWhat is the first thing that happens when a healthy cell detects damage to DNA? A. It stops the cell cycle B. It slows down the process of cell division C. It divides more quickly D. It becomes a benign tumorarrow_forward1) Examine the picture of an onion root tip with cells in various stages of the cell cycle. A student claims that interphase is the longest stage of the cell cycle. Another student claims that mitosis is the longest stage. Using evidence from the photo, determine which student is correct and why. A) Mitosis is the longest stage because anaphase requires more time to separate chromatids. B) Interphase is the longest stage because chromosomes are visible in the majority of the cells. C) Mitosis is the longest stage because the majority of the cells in the photo are replicating their DNA. D) Interphase is the longest stage because the majority of the cells in the photo have uncondensed chromatin and are not dividing. Not Gradedarrow_forward
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