Foundations in Microbiology
10th Edition
ISBN: 9781259705212
Author: Kathleen Park Talaro, Barry Chess Instructor
Publisher: McGraw-Hill Education
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Chapter 18.1, Problem 4ELO
Summarize the cutaneous, systemic, and toxigenic diseases caused by S. aureus, along with how the body defends against infection.
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Question #3:
In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would
transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming
there was just one gene conferring gametophytic obligate apomixis, and that the two parents are
inbreds, what would be the consequences of such a cross if:
a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non-
apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic
and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female
first (left side) in the parental cross.
b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non-
apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic
and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female
first (left side) in the…
Question #5:
Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The
genes show independent assortment. Recessive alleles at both loci are required for the facultative
apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C.
At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype.
A facultative apomict male, capable of producing viable pollen, was crossed with a sexually
reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic
ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following
temperatures*:
a) 15°C?
b) 25°C?
*for full credit, show crosses and genotypes where appropriate. Remember to position the
female first (left side) in the cross.
Type your answer here:
Chapter 18 Solutions
Foundations in Microbiology
Ch. 18.1 - Prob. 1ELOCh. 18.1 - Describe the ability of S. aureus to withstand...Ch. 18.1 - Prob. 3ELOCh. 18.1 - Summarize the cutaneous, systemic, and toxigenic...Ch. 18.1 - Prob. 5ELOCh. 18.1 - Explain strategies used to prevent and treat...Ch. 18.1 - Prob. 1CYPCh. 18.1 - Discuss why food intoxication in salty foods, such...Ch. 18.1 - Explain how unbroken skin, the phagocytic action...Ch. 18.1 - List the strategies commonly used to prevent and...
Ch. 18.1 - Explain the meanings of the acronyms MRSA, VRE,...Ch. 18.2 - Name the most important human pathogens in the...Ch. 18.2 - Summarize the virulence factors of S. pyogenes, as...Ch. 18.2 - Prob. 9ELOCh. 18.2 - Explain strategies used to prevent and treat...Ch. 18.2 - Relate the pathogenesis and epidemiology of S....Ch. 18.2 - List the clinically significant pathogens in the...Ch. 18.2 - Describe the immediate effects and long-term...Ch. 18.2 - Prob. 8CYPCh. 18.2 - Differentiate between pneumococcal disease...Ch. 18.3 - Name the most important human pathogens in the...Ch. 18.3 - Compare the differences in pathologies of N....Ch. 18.3 - Summarize the pathogenesis and epidemiology of N....Ch. 18.3 - Recall the medically important genera, besides...Ch. 18.3 - Describe the epidemiology and pathology of N....Ch. 18.3 - List the short-term and long-term consequences of...Ch. 18.3 - Prob. 12CYPCh. 18.L1 - Which of the following is/are a pyogenic...Ch. 18.L1 - The coagulase text is used primarily to...Ch. 18.L1 - Prob. 3MCQCh. 18.L1 - The most severe streptococcal diseases are caused...Ch. 18.L1 - 5. Rheumatic fever damages the _______, and...Ch. 18.L1 - ______ hemolysis is the partial lysis of red blood...Ch. 18.L1 - Prob. 7MCQCh. 18.L1 - Which of the following strains of pathogens has...Ch. 18.L1 - Otitis media is a/an _______ infection often...Ch. 18.L1 - Prob. 10MCQCh. 18.L1 - Prob. 11MCQCh. 18.L1 - Prob. 12MCQCh. 18.L1 - Prob. 13MCQCh. 18.L1 - Which infectious agent of those covered in the...Ch. 18.L1 - Prob. 15MCQCh. 18.L1 - Prob. 16MCQCh. 18.L1 - The first step in the clinical diagnosis of...Ch. 18.L1 - Vaccination can provide protection against N....Ch. 18.L1 - In this case, the first step taken to treat...Ch. 18.L1 - Prob. 1WCCh. 18.L1 - What conditions favor staph food poisoning?Ch. 18.L1 - Prob. 3WCCh. 18.L1 - Prob. 4WCCh. 18.L1 - Discuss the apparent pathology at work in...Ch. 18.L1 - Prob. 6WCCh. 18.L1 - a. Compare and contrast the characteristics of...Ch. 18.L2 - You have been handed the problem of diagnosing...Ch. 18.L2 - You have been called upon to prevent outbreaks of...Ch. 18.L2 - Prob. 3CTCh. 18.L2 - Prob. 4CTCh. 18.L2 - Prob. 5CTCh. 18.L2 - Prob. 6CTCh. 18.L2 - Prob. 1VCCh. 18.L2 - Prob. 2VC
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