EBK CAMPBELL BIOLOGY IN FOCUS
2nd Edition
ISBN: 8220101459299
Author: Reece
Publisher: PEARSON
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Chapter 16.1, Problem 1CC
Summary Introduction
To explain:
The reason why humans are not composed of similar or identical cells in spite of being a product of many mitotic divisions.
Introduction:
Mitosis is a type of cell division, which results in the formation of two identical daughter cells. It only occurs in vegetative cells and the ploidy of the cells remains the same. So, it is also called equational division. The whole process of mitosis completes in four phases, namely, prophase (I phase), metaphase (II phase), anaphase (III phase), and telophase (IV phase).
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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.
MAKE CONNECTIONS As you learned in Chapter 12,mitosis gives rise to two daughter cells that are genetically identical to the parent cell. Yet you, the product ofmany mitotic divisions, are not composed of identical,zygote-like cells. Why?
Mitosis DrawingIn this assignment you will track and draw the chromosomes of a diploid organism through all the stages of mitosis. Make sure to draw the alleles for genes A and B on the chromatids in every stage. For mitosis, remember that many events are going on in the cell that are relevant besides just the movement of chromosomes, so please fill in the cell with pertinent structures such as centrioles and spindles.
Chapter 16 Solutions
EBK CAMPBELL BIOLOGY IN FOCUS
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- Select all the features of mitosis that are true.arrow_forwardIn your own words,briefly describe the process of mitosis and differentiation.arrow_forwardfor each phase of mitosis make sure you can describe the events that take places as well as the mechanism(I.e from where to do microtubles form? How do they attach? What proteins are involved in chromosomes condensation? Etc)arrow_forward
- Does resulting daughter cells in mitosis and meiosis will have identical features with their parent cell? yes or no? Why? Does Interphase prepare the parent cell for division by means of cell growth and synthesis? yes or no? Why? Does the number of chromosomes found in the daughter cells after mitosis and meiosis will be the same as that of the parent cell? yes or no? Why?arrow_forwardWhich of the following is the correct order of events in mitosis? (Arrange accordingly) Sister chromatids line up at the metaphase The kinetochore becomes attached to the mitotic spindle. The nucleus reforms and the cell divides. Cohesin proteins break down and the sister chromatids separate. The kinetochore becomes attached to the mitotic Cohesin proteins break down and the sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the cohesin Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the mitotic Sister chromatids line up at the metaphase plate. Cohesin proteins break down and the sister chromatids separate. The nucleus reforms and the cell divides. Chemotherapy drugs such as vincristine and colchicine disrupt mitosis by binding to…arrow_forward2 3 4 5 8 9 10 11 12 13 14 15 16 17 18 19 20 22 ху During which phase does cytokinesis begin? What cell parts migrate to the poles during prophase? What structure holds the two chromatids together? What is the overall purpose of mitosis? 21arrow_forward
- Does resulting daughter cells in mitosis and meiosis will have identical features with their parent cell? Why? Does Interphase prepare the parent cell for division by means of cell growth and synthesis? Why? Does the number of chromosomes found in the daughter cells after mitosis and meiosis will be the same as that of the parent cell? Why? 5 sentences each.arrow_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_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_forward
- Using playing cards: what does this arrangement represent? O Prophase II O Prophase I O Mitotic Metaphase O Mitotic Anaphase O Metaphase | O Anaphase II O Intephase O Mitotic Telophase O Metaphase l O Telophase II O Anaphase Iarrow_forwardWhat is the correct answer?arrow_forwardWhat cells undergo the process of mitosis? I thought it would be somatic, but according to my teacher it’s not. I understand in the process of meiosis it undergoes unique cells. And I thought during the process of mitosis it undergoes all somatic cells.arrow_forward
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The Cell Cycle and its Regulation; Author: Professor Dave Explains;https://www.youtube.com/watch?v=eqJqhA8HSJ0;License: Standard YouTube License, CC-BY
Cell Division - Mitosis and Meiosis - GCSE Biology (9-1); Author: Mr Exham Biology;https://www.youtube.com/watch?v=w7vp_uRA8kw;License: Standard YouTube License, CC-BY