Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 2.14, Problem 3MQ
Summary Introduction
In general, eukaryotic microbes are larger and structurally highly complex compared to prokaryotes. Eukaryotic microbes include the protozoa, the algae, the
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Lab 8- Mitosis & Meiosis
Exercise 4 cont'd
3. Could alternate arrangements of chromosomes occur during Metaphase I?
What is this called?
Would
alternate arrangements affect the outcome in the daughter cells of Meiosis I?
Meiosis II?
Meiosis stage descriptions
7. homologous pairs line up as tetrads along the middle of the cell
8. one of each homologous pair reaches the ends of the cell, the cell begins pinching in, and two new nuclear membranes form
9. DNA condenses in two haploid cells, the nuclear membranes disintegrate
10. sister chromatids split apart and daughter chromosomes move towards the ends of two cells
11. DNA replication has occured, DNA decondensed in one cell
12. four cells with half of the genetic material of a body cell result, all are different from each other
Match the picture or the image with the name of the stage it represents. Use each stage just once for either an image or description.
Picture 1
Picture 2
Picture 3
Picture 4
Picture 5
Picture 6
Meiosis stage descriptions
7. homologous pairs line up as tetrads along the middle of the cell
8. one of each homologous pair reaches the ends of the cell, the cell begins pinching in, and two new nuclear membranes form
9. DNA condenses in two haploid cells, the nuclear membranes disintegrate
10. sister chromatids split apart and daughter chromosomes move towards the ends of twn cells
Chapter 2 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 2.1 - How do cocci and rods differ in morphology?Ch. 2.1 - Using a microscope, could you differentiate a...Ch. 2.1 - What are the major morphologies of prokaryotic...Ch. 2.2 - What physical property of cells increases as cells...Ch. 2.2 - How can the small size and haploid genome of...Ch. 2.2 - What are the approximate limits to how small a...Ch. 2.2 - How large can a bacterium be? How small? Why is it...Ch. 2.3 - Draw the basic structure of a lipid bilayer and...Ch. 2.3 - Prob. 2MQCh. 2.3 - Prob. 3MQ
Ch. 2.3 - Describe in a single sentence the structure of a...Ch. 2.4 - Why do bacterial cells need cell walls? Do all...Ch. 2.4 - Prob. 2MQCh. 2.4 - What do the enzyme lysozyme and the antibiotic...Ch. 2.4 - Prob. 1CRCh. 2.5 - Prob. 1MQCh. 2.5 - Prob. 2MQCh. 2.5 - Prob. 3MQCh. 2.5 - List several functions of the outer membrane in...Ch. 2.6 - Prob. 1MQCh. 2.6 - Prob. 2MQCh. 2.6 - Prob. 1CRCh. 2.7 - Prob. 1MQCh. 2.7 - Prob. 2MQCh. 2.7 - Chapter Review How can type IV pili facilitate...Ch. 2.7 - Prob. 1CRCh. 2.8 - Prob. 1MQCh. 2.8 - Chapter Review Why would it be impossible for...Ch. 2.8 - Chapter Review How are magnetosomes and the...Ch. 2.8 - Prob. 1CRCh. 2.9 - Prob. 1MQCh. 2.9 - Prob. 2MQCh. 2.9 - Prob. 1CRCh. 2.10 - Prob. 1MQCh. 2.10 - Prob. 2MQCh. 2.10 - Prob. 3MQCh. 2.10 - In a few sentences, indicate how the bacterial...Ch. 2.11 - Prob. 1MQCh. 2.11 - Prob. 2MQCh. 2.11 - Prob. 1CRCh. 2.12 - Prob. 1MQCh. 2.12 - Prob. 2MQCh. 2.12 - Contrast the mechanism for motility in...Ch. 2.13 - Prob. 1MQCh. 2.13 - Prob. 2MQCh. 2.13 - Prob. 3MQCh. 2.13 - Chapter Review How does scotophobotaxis differ...Ch. 2.13 - In a few sentences, explain how a swimming...Ch. 2.14 - Prob. 1MQCh. 2.14 - Prob. 2MQCh. 2.14 - Prob. 3MQCh. 2.14 - List at least three features of eukaryotic cells...Ch. 2.15 - Prob. 1MQCh. 2.15 - Prob. 2MQCh. 2.15 - Prob. 3MQCh. 2.15 - How are the mitochondrion and the hydrogenosome...Ch. 2.16 - Prob. 1MQCh. 2.16 - Prob. 2MQCh. 2.16 - Prob. 3MQCh. 2.16 - Describe the major functions of the endoplasmic...Ch. 2 - Prob. 1AQCh. 2 - Assume you are given two cultures, one of a...Ch. 2 - Prob. 3AQ
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- Learning Task 4. Write Tif the statement is True and F if it is False. 26. Meiosis is required for genetic variation and continuity of all living organisms. 27. Meiosis also plays an important role in the repair of genetic defects in germline cells. 28. Mitosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. 29. Mitosis also produces genetic variation by way of the process of recombination. 30. Variation is increased even further when two gametes unite during fertilization, thereby creating offspring with unique combinations of DNA.arrow_forwardLearning Task 2: Directions: Identify if the statement is Mitosis or Meiosis. the form of nuclear cell division that results in daughter cells that have one half the 16. chromosome numbers as the original cell. 17. cell gets one complete set of chromosomes, i.e., one of each homologous pair of chromosomes. 18. 19. 20. chromosomes to 46. In organisms that are diploid, the end result is cells that are haploid. Each daughter is the process where the division of cell occurs by asexual reproduction. Lis the only cells that undergo. The joining together of a sperm and egg during fertilization returns the number of the will become sperm or eggs.arrow_forwardQUESTIONS: ©A cell containing 20 chromosomes (diploid) at the beginning of meiosis would, at its completion, produce cells containing how many chromosomes? ©A cell containing 40 chromatids at the beginning of meiosis would, at its completion, producể cells containing how many chromosomes?arrow_forward
- Biology Unit Test Q3 Home Insert Draw Layout Review View Picture alibri Regular (B 12 B I А. 23. What is the main reason why gamete cells undergo MEIOSIS instead of Mitosis? Explain why. a. 24. What is the main reason why somatic cells undergo MITSOSIS instead of Meiosis? Explain and give an example. a. .arrow_forwardQ7: The diagram below shows a cell during Meiosis II: (A) Kinetochore Kinetochore microtubule Centrosome Centriole Polar microtubule LIFE 8e, Figure 9.9 (Part 1) LIFE THE SCIENCE OF BIOLOGY, Elghth Edtion 02007 Sinauer Associates, Inc. and W. H. Freeman & Co. а. What phase of Meiosis II is the cell in? How do you know? b. Assuming all of the chromosomes present during Meiosis II are shown in the figure above, how many chromosomes (counting homologous pairs as two chromosomes) does a gamete from this organism have? с. Draw the same cell during the same phase of Meiosis I. Label the elements.arrow_forwardActivity 8: Sequencing Meiotic StagesLabel the stage of meiosis in each box below each diagram. Then, cut out each figure and arrange the cells so they reflect the proper order of stages of meiosis -starting with a cell in interphase and ending with the completion of meiosis. Write the letter sequence of the cells in your Lab, Activity #8.AMeiosis in animal cellarrow_forward
- Q1. Draw and label two cells at anaphase of mitosis and anaphase I of meiosis in a species having 2n - 4 chromosomes (one homologous pair of metacentric chromosomes and a pair of acrocentric chromosomes).arrow_forwardTask: Show your work/explain your reasoning as much as possible. If a certain species has a DNA content of 12 picograms in each diploid cell's nucleus when the cell in in G1 of the cell cycle, what would be the expected DNA content (in picograms) of a triploid cell (from the same species) in mitotic prophase? Consider ploidy changes and/or chromosome form changes, if applicable, when explaining your reasoning.arrow_forwardMAKE 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?arrow_forward
- Q1- Why does mitosis and binary fission not always lead to exact copies the parent?arrow_forwardChapter 5: Mitosis and Meiosis BLM 5.1-2 A Diagrammatic Comparison of Mitosis and Meiosis Name: Draw chromosomes in the following cells to represent the various stages of mitosis and meiosis for an organism with a diploid number of 4. Label your diagrams with descriptions of the chromosomes and the key events that are occurring during this stage of the process.arrow_forwardQUE STION 11 Which of the following is FALSE about mitotic cell division? O A. Some cells repair and replace themselves quickly using mitotic cell division like our stomach lining and skin while others go through mitotic cell division more slowly like liver and bone. O B. Mitotic cell division is a special type of cell division that results in the formation of egg and sperm cells (sex cells) that carry hereditary information. O C. There are mitotic cell divisions going on in your body right now. O D. Some cell in adult humans do not undergo mitotic cell division like brain and spinal cord cells, muscle cells and egg and sperm cells.arrow_forward
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