NESTER'S MICROBIOLOGY: A HUMAN PERSPECT
9th Edition
ISBN: 9781260161373
Author: Anderson, SALM
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 24, Problem 2MC
Summary Introduction
Introduction:
Tooth decay or dental caries is a common chronic disease that generally results in the loss of the tooth. Its first symptom is severe toothache. Streptococcus mutans(S.mutans), a Gram-positive facultative anaerobic bacterium and other species related to it are the common causes of dental caries.
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The shape of radishes may be long (SL/SL), oval (SL/SS), or round (SS/SS), and the color of radishes may be red (CR/CR), purple (CR/CW) or white (CW/CW). If a long, red radish plant is crossed with a round, white plant, what will be the appearance of the F1 and F2 generations?
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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…
Chapter 24 Solutions
NESTER'S MICROBIOLOGY: A HUMAN PERSPECT
Ch. 24 -
1. Describe two characteristics of Streptococcus...Ch. 24 - Describe the process of periodontal disease.Ch. 24 - Prob. 3SACh. 24 - Prob. 4SACh. 24 - Prob. 5SACh. 24 - How do Shigella cells move from one host cell to...Ch. 24 - Name four different pathogenic groups of...Ch. 24 -
8. What predisposes someone to a Clostridium...Ch. 24 - Prob. 9SACh. 24 -
10. Contrast the cause and epidemiology of...
Ch. 24 - Which of the following about intestinal bacteria...Ch. 24 - Prob. 2MCCh. 24 - Prob. 3MCCh. 24 - Vibrio cholerae pathogenesis involves all of the...Ch. 24 - Prob. 5MCCh. 24 - Prob. 6MCCh. 24 - Prob. 7MCCh. 24 - Prob. 8MCCh. 24 - Prob. 9MCCh. 24 - Prob. 10MCCh. 24 - Prob. 1ACh. 24 - Prob. 2ACh. 24 - Prob. 1CTCh. 24 - Prob. 2CT
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