Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 15.1, Problem 5AYP
Compare and contrast the process of antigen recognition in T cells and B cells.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Overview of Transformation Protocol
-Prepare competent bacteria for transformation:
Treat starter E. coli bacteria with CaCl2and Competent Cell Solution (CCS). Store on ice until transformation procedure.
Competent cells are cells that are likely to take up foreign DNA and be transformed. This step increases the likelihood that the E. coli cells will take up the introduced vector and be transformed.
-Transformation procedure:
Obtain two microcentrifuge tubes containing your competent cells. Label one tube +DNA and one -DNA.
Add CaCl2 to both tubes.
Add the transformation mix containing the plasmid DNA to the tube labeled +DNA. Do not add any plasmid DNA to the -DNA tube.
Incubate both tubes on ice for 10 minutes. Then, place both tubes in a 42\deg C water bath for 45 seconds. Replace the tubes in an ice bucket for 2 minutes.
Add recovery broth to both tubes.
Incubate both tubes in a 37 C water bath for 5 minutes.
Questions:
1)What is the selectable marker in this experiment? How…
Based on your results, which suspect's DNA best matches the DNA found at the crime scene?
In oxidase test with Pseudomonas aeruginosa, the cell cultures on the slide turn colorless to be
purple after tetra-methyl-p-phenylenediamine dihydrochloride (TMPD) is added. In the
reaction,
OTMPD is electron acceptor
O cytochrome c is the electron source
oxygen is terminal electron acceptor
OH2 produced is electron donor
Chapter 15 Solutions
Microbiology: A Systems Approach
Ch. 15.1 - Describe how the third line of defense is...Ch. 15.1 - Prob. 2AYPCh. 15.1 - Discuss four major functions of immune system...Ch. 15.1 - Define the role of the major histocompatibility...Ch. 15.1 - Compare and contrast the process of antigen...Ch. 15.2 - Prob. 6AYPCh. 15.2 - Prob. 7AYPCh. 15.2 - Outline the processes of clonal selection and...Ch. 15.2 - Prob. 9AYPCh. 15.3 - Compare the terms antigen and epitope.
Ch. 15.3 - List characteristics of antigens that optimize...Ch. 15.3 - Prob. 12AYPCh. 15.3 - List the types of cells that can act as...Ch. 15.4 - Prob. 14AYPCh. 15.4 - Diagram the steps of B-cell activation, and list...Ch. 15.5 - Prob. 16AYPCh. 15.5 - Explain the role of cytotoxic T cells in...Ch. 15.6 - Diagram an antibody binding antigen, and list the...Ch. 15.6 - List the five types of antibodies and important...Ch. 15.6 - Draw and label a graph illustrating the...Ch. 15.7 - Prob. 21AYPCh. 15.7 - Discuss the qualities of an effective vaccine.Ch. 15.7 - List several types of vaccines, and discuss how...Ch. 15.7 - Explain the principle of herd immunity and the...Ch. 15 - The primary B-cell receptor is a. IgD. b. IgA. c....Ch. 15 - In humans. B cells mature in the _________, and T...Ch. 15 - Small, simple molecules are ________ antigens. a....Ch. 15 - The cross-linkage of antigens by antibodies is...Ch. 15 - T cells assist in the functions of certain B cells...Ch. 15 - TC cells are important in controlling a. virus...Ch. 15 - Which of the following can serve as...Ch. 15 - A vaccine that contains parts of viruses is called...Ch. 15 - Conjugated vaccines combine antigens and a....Ch. 15 - Widespread immunity that protects the population...Ch. 15 - Cell surface markers are also often called...Ch. 15 - Antibodies are secreted by monocytes.Ch. 15 - Vaccination could be described as artificial...Ch. 15 - IgE antibodies are found in body secretions.Ch. 15 - Prob. 15TFCh. 15 - Explain the two main features that characterize...Ch. 15 - Prob. 2CTQCh. 15 - Prob. 3CTQCh. 15 - Provide an explanation to refute the following...Ch. 15 - a. Explain how the anamnestic response is...Ch. 15 - Prob. 1VCCh. 15 - Using the words that follow, please create a...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- You will use the following scenario to answer a group of 5 questions. You have isolated a microbe from an environmental sample. The microbe has the ability to perform a new metabolic reaction at a very low temperature, so you are excited that it could be a new species. You have shipped your samples off for sequencing and are now waiting for the results. Out of curiosity (and maybe boredom...) you decide to test your culture for the Catalase and Oxidase enzymes. Upon testing your sample for catalase, you don't see any bubbles; however, you do see a color change to purple during the Oxidase test. What results can you conclude from this? O Catalase-/ Oxidase + O Catalase +/ Oxidase + Catalase + / Oxidase- O Catalase / Oxidase - O None of the abovearrow_forwardWhich of the following is not a strength of using 16S rRNA for phylogenetic analyses? OA. It's cheap OB. It's easy to do C. It can be used to identify all the way down to the strain level OD. Both A & B OE. None of the abovearrow_forwardWhy are molecular approaches important to the field of microbial taxonomy and phylogeny? Phylogenetic inferences based on molecular approaches provide the most robust analysis of microbial evolution currently available. It allows for the collection of a large and accurate dataset from many organisms Almost no fossil record was left by microbes when compared to plants and animals All of the above None of the abovearrow_forward
- You will use the following scenario to answer a group of 5 questions. You have isolated a microbe from an environmental sample. The microbe has the ability to perform a new metabolic reaction at a very low temperature, so you are excited that it could be a new species. You have already cultured it and gone through the plate isolation procedure. Before you ship your samples off for sequencing, you want to do one final check of the A260 ratios. You get back the following ratios: A260/280 ratio is 1.89; A260/230 is 2.01. These ratios are close enough to the accepted "pure" values so they could be considered "pure" and mostly (if not completely) free of contaminants from the PCR process. True Falsearrow_forwardYou will use the following scenario to answer a group of 5 questions. You have isolated a microbe from an environmental sample. The microbe has the ability to perform a new metabolic reaction at a very low temperature, so you are excited that it could be a new species. After receiving your sequence back from the sequencing lab, you feel that you have, in fact, discovered and isolated a new species. You ask a fellow labmate about how you should proceed, and he tells you the following is the proper way to introduce a new species for recognition: Cultures have to be sent to international culture collections. Then a paper must be published describing the new organism and providing a genus and species name. You recall learning about this in your Microbiology course in college. Is this information from your colleague true or false? True Falsearrow_forwardis often a good indication of phylogenetic relatedness in phenotypes. Life-cycle patterns Cleavage patterns O Gene expression O Morphological similarityarrow_forward
- Which of the following is a weakness of using 16S rRNA for phylogenetic analyses? It can only go down to the family and genus levels It takes months to complete O Both of the above O None of the abovearrow_forwardAn unrooted tree containing ten unrelated species can become rooted by adding a descendant group related to two of the species. an unrelated outgroup. O a distantly related outgroup. O a descendant related to only one of the species.arrow_forwardWhat is the most appropriate purpose of building a phylogenetic tree? They look awesome You can use a tree to compare morphological characteristics of organisms It can be used to establish and analyze evolutionary relationships between species All of the abovearrow_forward
- Which of the following sequencing techniques can identify down to the strain level? O Multilocus sequence typing Genomic fingerprinting Whole genome sequencing OSNP analysis All of the abovearrow_forwardWhat is the "gold standard" that is currently applied to species designations in microbiology? 97% between species: 50% among whole genome 90% between species: 75% among whole genome 99% between species; 97% among whole genome 97% between species: 70% among whole genome Onone of the abovearrow_forwardYou will use the following scenario to answer a group of 5 questions. You have isolated a microbe from an environmental sample. The microbe has the ability to perform a new metabolic reaction at a very low temperature, so you are excited that it could be a new species. You have decided to send your sample off for sequencing. You need to determine which type of sequencing to use for the preliminary identification of your species. You decide that, for now, you only need to be able to identify the family and genus levels. Which type of sequencing do you think is the most appropriate? O Genomic Fingerprinting O Whole Genome Sequencing O 16S rDNA Sequencing O DNA-DNA hybridization Nextarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Immune System and Immune Response Animation; Author: Medical Sciences Animations;https://www.youtube.com/watch?v=JDdbUBXPKc4;License: Standard YouTube License, CC-BY
Immune response: summary; Author: Dr Bhavsar Biology;https://www.youtube.com/watch?v=ADANgHkX4OY;License: Standard Youtube License