Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 25.1, Problem 1TQ
Summary Introduction
To review:
Virulence of a microbe with LD50 (lethal dose 50%) with 5 Ă— 104 and another microbe of LD50 with 5 Ă— 107.
Introduction:
Virulence is a parameter by which the severity or degree of a disease is measured. The fatality rates of different microbes define the virulence of the pathogen. For example, Ebola and Marburg virus have fatality rates of 70% and hence, are highly virulent. Lethal dose 50% is used to measure the virulence of a microbe such as a virus or bacteria. It is the number of microbes needed for killing 50% of the experimental group of animal hosts.
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9. Chicken combs in chickens is an example where you see interactions between genes.
See potential genotypes and phenotypes below. Which genotype, when mated to a
rose comb chicken, will produce progeny that are 50% walnut comb and 50% pea comb?
walnut
(RRPP)
walnut
(RrPP)
pea
(rrPP)
walnut
(RRPP)
walnut
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pea
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(rrpp)
Describe a compound light microscope and its importance in microbiology (2) examples of at least two microbes viewed under a compound light microscope and their general characteristics (note: the microbes you choose do not need to be the ones outlined in the above tutorial video) and (3) at least one source you used for the information included in your infographic.
Chapter 25 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 25.1 - Prob. 1TQCh. 25.4 - Prob. 1TQCh. 25.4 - Prob. 2TQCh. 25.4 - Prob. 3TQCh. 25.4 - Prob. 4TQCh. 25.5 - Prob. 1TQCh. 25.6 - Prob. 1TQCh. 25.6 - Prob. 2TQCh. 25.6 - Prob. 3TQCh. 25.6 - Prob. 4TQ
Ch. 25.7 - Prob. 1TQCh. 25 - Prob. 1RQCh. 25 - Prob. 2RQCh. 25 - Prob. 3RQCh. 25 - Prob. 4RQCh. 25 - Prob. 5RQCh. 25 - Prob. 6RQCh. 25 - Prob. 7RQCh. 25 - Prob. 8RQCh. 25 - Prob. 9RQCh. 25 - Prob. 10RQCh. 25 - Prob. 11RQCh. 25 - Prob. 12RQCh. 25 - Prob. 13RQCh. 25 - Prob. 14RQCh. 25 - Prob. 15RQCh. 25 - Prob. 16RQCh. 25 - Prob. 17RQCh. 25 - Prob. 1TQCh. 25 - Prob. 2TQCh. 25 - Prob. 3TQCh. 25 - Prob. 4TQCh. 25 - Prob. 5TQ
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