Microbiology: An Introduction
11th Edition
ISBN: 9780321733603
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: Benjamin Cummings
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Chapter 23, Problem 2R
Summary Introduction
Introduction:
| Disease | Frequent causative agent | Predisposing condition(s) |
| Puerperal sepsis | Streptococcus pyogens | Peritonitis |
| Sub-acute bacterial endocarditis | Streptococcus viridens | Rheumatic fever, syphilis, congenital heart defect |
| Rheumatic fever | Streptococcus pyogens | Streptococcal sore throat |
Streptococcal infections lead to a number of clinical complications such as puerperal sepsis, sub-acute bacterial endocarditis and rheumatic fever.
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The Snapdragon is a popular garden flower that comes in a variety of colours, including red, yellow, and orange. The genotypes and associated phenotypes for some of these flowers are as follows:
aabb: yellow
AABB, AABb, AaBb, and AaBB: red
AAbb and Aabb: orange
aaBB: yellow
aaBb: ?
Based on this information, what would the phenotype of a Snapdragon with the genotype aaBb be and why?
Question 21 options:
orange because A is epistatic to B
yellow because A is epistatic to B
red because B is epistatic to A
orange because B is epistatic to A
red because A is epistatic to B
yellow because B is epistatic to A
A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?
The cell membranes are more resistant than normal.
An isotonic solution had been added instead of water.
A solution of 0.1 M NaCl had been added instead of water.
Not enough water had been added to the red blood cell pellet.
The man had sickle-cell anaemia.
A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?
The cell membranes are more resistant than normal.
An isotonic solution had been added instead of water.
A solution of 0.1 M NaCl had been added instead of water.
Not enough water had been added to the red blood cell pellet.
The man had sickle-cell anaemia.
Chapter 23 Solutions
Microbiology: An Introduction
Ch. 23 - Identify the portals of entry for Trypanosoma...Ch. 23 - Prob. 2RCh. 23 - Prob. 3RCh. 23 - Complete the following table.Ch. 23 - Complete the following table.Ch. 23 - Prob. 6RCh. 23 - Compare and contrast cat-scratch disease and...Ch. 23 - Prob. 8RCh. 23 - Prob. 9RCh. 23 - Prob. 10R
Ch. 23 - Use the following choices to answer questions 1...Ch. 23 - Prob. 2MCQCh. 23 - Prob. 3MCQCh. 23 - Prob. 4MCQCh. 23 - Prob. 5MCQCh. 23 - Which of the following is not a tickborne disease?...Ch. 23 - Prob. 7MCQCh. 23 - Prob. 8MCQCh. 23 - Prob. 9MCQCh. 23 - Prob. 10MCQCh. 23 - Prob. 1ACh. 23 - What is the most effective way to control malaria...Ch. 23 - Prob. 3ACh. 23 - The hunter picked up the front paws for good luck....Ch. 23 - Prob. 2CAECh. 23 - Prob. 3CAECh. 23 - Prob. 4CAECh. 23 - A 67-year-old man worked in a textile mill that...
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