Biology: Life on Earth Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780134153742
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 4FTB
Eukaryotic cells are often stimulated to divide by hormone-like molecules called ________ ______ monitor progress through the cell cycle. Two categories of genes that, when mutated, often allow unregulated cell division are ______ and ______.
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Chapter 9 Solutions
Biology: Life on Earth Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 9 -
1. A cell that remains capable of dividing...Ch. 9 - The chromosomes of a cell are lined up along the...Ch. 9 -
3. The chromosomes first attach to the spindle...Ch. 9 - How does prokaryotic fission differ from...Ch. 9 -
5. Which of the following is NOT true of mitotic...Ch. 9 - Prob. 1FTBCh. 9 -
2. Prokaryotic cells divide by a process called...Ch. 9 - Growth and development of eukaryotic organisms...Ch. 9 - Eukaryotic cells are often stimulated to divide by...Ch. 9 - The four phases of mitosis are _______, _______,...
Ch. 9 - Prob. 6FTBCh. 9 - Prob. 1RQCh. 9 -
2. Define mitosis and cytokinesis. What changes...Ch. 9 - Diagram the stages of mitosis. How does mitosis...Ch. 9 - Prob. 4RQCh. 9 -
5. Describe and compare the process of...Ch. 9 - How is the cell cycle controlled? Why is it...Ch. 9 - Diagram and describe the prokaryotic cell cycle.Ch. 9 - Most nerve cells in the adult human central...Ch. 9 - Cancer cells divide out of control. Side effects...
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- Suppose you have a way of measuring the amount of DNA in a single cell during the cell cycle. You first measure the amount during the G1 phase. At what points during the remainder of the cycle would you predict changes in the amount of DNA per cell?arrow_forwardWhich stage of the cell cycle is the longest? Why are onion root tips a good choice for viewing cells in different stages of the cell cycle? Are there any mammalian cells that would be a good source for dividing cells? What types of cells would most like NOT have cells undergoing division?arrow_forwardSome cells in organisms can divide on a daily basis while others do not divide as often. Which phase of the cell cycle do you think would vary the most due to different rates of cell division and whyarrow_forward
- Benign and cancerous tumors occur when the cell cycle control mechanisms no longer operate correctly. What types of genes may be involved in these cell cycle control mechanisms?arrow_forwardAt the end of which phase(s) of the mitotic cell cycle does each chromosome consist of two sister chromatids? Indicate all correct answers – more than one answer is correct. a) G1 of interphase b) G2 of interphase c) anaphase d) metaphase e) prophase f) telophasearrow_forwardThe same chromosome can look very different depending on when in meiosis it is observed. Explain fully why this is so and also why the chromosome is less condensed during some parts of the cell cycle? How many DNA molecules does each chromosome contain at the beginning of Prophase I? Use the following terms in your explanation: chromatin, histone, chromatid, centromere.arrow_forward
- A cell has 38 chromosomes after mitosis and cell division, one daughter cell 39 chromosomes and the other has 37. What might have caused these abnormal chromosome number's? What effects do you suppose this might have on cell function and why?arrow_forwardCancer, the uncontrolled growth of cells, often results in a tumor, or mass of abnormal cells. Some cancerous tumors consist of many cells that are much smaller than normal. According to Figure 1, what part of the cell cycle is most likely being affected? Explain.arrow_forwardHomologous pairs of chromosomes are undergoing crossing over, but they have not yet lined up in the middle of the cell. Which stage of the cell cycle is this? A:Anaphase Il B:Anaphase I C:Prophase II D:Prophase Iarrow_forward
- List 3 important events that occur during mitosis and provide a justification why each should happen at a specific stage. You may present your answers in a tabular form.arrow_forwardWhat is the major difference between M phase and interphase of the cell cycle? We can see activity within the cell only during M phase. Interphase is when the cell divides, whereas M phase is where it is mute. We can see activity within the cell only during interphase. M phase involves color changes, which is why there are chromosomes.arrow_forwardWhich phase of the cell cycle is NOT part of interphase? Group of answer choices A. G1 B. S C. M D. G2arrow_forward
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