Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 13.3, Problem 1CC
MAKE CONNECTIONS → Comparc tho chromosomes in a cell at metaphase of mitosis with those in a cell at metaphase II. (See Figures 12.7 and 13 8 )
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Let’s model mitosis. Focus on drawing the cell nucleus taking care to model the number and location of chromosomes. Although the chromosomes are only visible in each stage, draw them in all stages for clarity sake.
Draw a 2n=4 cell at G1 of interphase.
Draw the same cell at the start of prophase.
Draw the same cell at metaphase.
Draw the cell(s) that result at the end of cytokinesis.
MAKE CONNECTIONS Look at Figure 12.7 and imagine the twodaughter cells undergoing another round of mitosis, yielding four cells.Compare the number of chromosomes in each of those four cells, aftermitosis, with the number in each cell in Figure 13.8, after meiosis. Whatis it about the process of meiosis that accounts for this difference, eventhough meiosis also includes two cell divisions?
23. what stage of mitosis in which chromosomes begin to undergo a condensation process that will continue until metaphase?a. interphaseb. telophasec. prophased. prometaphase24. this stage of mitosis is characterized by an abrupt separation of sister chromatidsa. interphaseb. cytokinesisc. anaphased. prophase
Chapter 13 Solutions
Campbell Biology (11th Edition)
Ch. 13.1 - MAKE CONNECTIONS Using what you know of gene...Ch. 13.1 - How does an asexually reproducing eukaryotic...Ch. 13.1 - WHATIF? A horticulturalist breeds orchids, trying...Ch. 13.2 - MAKE CONNECTIONS In Figure 13.4. how many DNA...Ch. 13.2 - VISUAL SKILLS In The karyotype shown in Figuro...Ch. 13.2 - WHAT IF? A certain eukaryote lives as a...Ch. 13.3 - MAKE CONNECTIONS Comparc tho chromosomes in a...Ch. 13.3 - WHAT IF? After the synaptonemal complex...Ch. 13.4 - What is the original source of Variation among the...Ch. 13.4 - The diploid number for fruit flies is 8, and the...
Ch. 13.4 - Prob. 3CCCh. 13 - Explain why human offifuing resemble their parents...Ch. 13 - Compare the life cycles of animals and plants,...Ch. 13 - Prob. 13.3CRCh. 13 - Prob. 13.4CRCh. 13 - A human cell containing 22 autosomes.and a Y...Ch. 13 - The two homologs of a pair move toward opposite...Ch. 13 - Meiosis II is similar to mitosis in that (A)...Ch. 13 - Prob. 4TYUCh. 13 - If we continue to follow the cell lineage from...Ch. 13 - DRAW IT The diagram shows a cell in meiosis. (a)...Ch. 13 - Explain how you can tell that the cell in question...Ch. 13 - EVOLUTION CONNECTION Many species can reproduce...Ch. 13 - SCIENTIFIC INQUIRY The diagram in quest ion 6...Ch. 13 - Prob. 10TYUCh. 13 - SYNTHESIZE YOUR KNOWLEDGE For selected answers,...
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- VISUALIZE Sketch a mitotic prophase chromosome and label sister chromatids, sister centromeres, and sister kinetochores.arrow_forwardVisit this link (http://openstaxcollege.org/l/mitosis) to learn about mitosis. Mitosis results in two identical diploid cells. What structures form during prophase?arrow_forwardA diploid nucleus at early mitotic prophase has __________ set(s) of chromosomes; a diploid nucleus at mitotic telophase has __________ set(s) of chromosomes. (a) 1; 1 (b) 1; 2 (c) 2; 2 (d) 2; 1 (e) not enough information has been givenarrow_forward
- Discuss Concepts A cell has 38 chromosomes. After mitosis and cell division, one daughter cell has 39 chromosomes and the other has 37. What might have caused these abnormal chromosome numbers? What effects do you suppose this might have on cell function? Why?arrow_forwardThe mitotic spindles arise from which cell structure? centromere centroscme kinetochore cleavage furrowarrow_forwardThe spindle attaches to chromosomes at the _______. a. centriole b. contractile ring c. centromere d. centrosomearrow_forward
- Test Your Understanding 2. At which of the following stages do human skin cell nuclei have the same DNA content? (a) early mitotic prophase and late mitotic telophase (b) G1 and G2 (c) G1 and early mitotic prophase (d) G1 and late mitotic telophase (e) G2 and late mitotic telophasearrow_forwardFigure 6.4 Which of the following is the correct order of events in mitosis? a. Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the initotic spindle. The nucleus re-forms and the cell divides. The sister chromatids separate. b. The kinetochore becomes attached to the mitotic spindle. The sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus re-forms and the cell divides. c. The kinetochore becomes attached to metaphase plate. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus re-forms and the cell divides. d. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. The kinetochore breaks apart and the sister chromatids separate. The nucleus re-forms and the cell divides.arrow_forwardThe molecular tether that links sister chromatids of a duplicated chromosome to each other is (a) condensin (b) actin (c) myosin (d) cohesin (e) actomyosinarrow_forward
- Q1: Do all cells in an organism enter each stage of mitosis at the same time? (Hint: See image of onion root tip at far left in the figure.) Q2: What happens between the end of interphase and early prophase that changes the appearance of the chromosomes? Q3: Explain in your own words the role of the mitotic spindle in mitosis.arrow_forward8. Based on this picture, identify each part of this diagram and answer the following: A. G1 is represented by which number? B. Mitosis is represented by which number? C. Which number represents duplication of chromosomes during the cell cycle?arrow_forward6. Complete the cellular detail for each phase as you observe it in the whitefish cells. Below each drawing , note what is happening to the DNA (chromatin, chromatids, chromosomes)arrow_forward
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