Campbell Biology In Focus, Loose-leaf Edition (3rd Edition)
3rd Edition
ISBN: 9780134895727
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 25, Problem 7TYU
MAKE CONNECTIONS The bacterium Wolbachia is a symbiont that lives in mosquito cells and spreads rapidly through mosquito populations. Wolbachia can make mosquitoes resistant to infection by Plasmodium; researchers are seeking a strain that confers resistance and does not harm mosquitoes. Compare evolutionary changes that could occur if malaria control is attempted using such a Wolbachia strain versus using insecticides to kill mosquitoes. (Review Figure 25.26 and Concept 21.3)
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Phylogenetic with branch lengths scaled in genetic distance
0.88
0.88
0.93
0.78
2388-3883
232 2002
4⁹29930
9823-2883
0.8
0.82
0.89-
Mycobacterium tuberculosis Lineage 2
0.99
2001
90-2004
4484 2005
-0.635
388627805
718356883
11 2002
-83331-9811
74333-2690
$250-2010
10737 2002
203 2001
1511 208201
4701810
2008-2011
6295 29889
8073_2007
0.01 (# substitutions/nucleotide
site)
83922889
015 2005
98507_2009
8195 200
46828000
Root-to-tip distance
Evolutionary distance from root-to-tip versus sampling
time
2.8x10
2.2x10
R²=0.00
1990
1995
2000
00 000
80
2005
000
O
oo
XBOO8
1. In this figure you can see a phylogenetic tree of samples of Mycobacterium
tuberculosis lineage 2 and a corresponding root-to-tip plot. The branch
lengths in the tree are scaled by evolutionary/genetic distance, so not by time.
In the plot on the right, the summed branch lengths going from the root to the
tips of the trees are then plotted against the dates the tips were sampled.
What can we conclude from these figures?
The…
Wolbachia is a genus of bacteria that infect cells of invertebrates. Surveys have found that up to a
fifth of insect species have at least some individuals infected with Wolbachia. Pathogen or
parasite? This endosymbiont (a symbiont that lives inside its host) bacteria can have many effects
on its host, including killing offspring and changing the sex of offspring.
Ary Hoffmann from the University of Melbourne in Australia, Michael Turelli from the University of
California at Davis, and their associates have been studying Wolbachia infections in populations of
Drosophila simulans from California. From the initial infection around 1980, Wolbachia infection
spread northward across the state during the 1980s and 1990s. The most striking manifestation of
infection in this fly species is cytoplasmic incompatibility: offspring produced in crosses where
males are infected and the females are uninfected tend to die early in development. In crosses
between infected males and infected females,…
"Early in the COVID-19 pandemic, some argued that comparable numbers of people caught bad strains of the influenza virus (causing the viral flu); thus, by extension, the restrictions imposed on society for COVID-19 were unduly burdensome. Based on our discussion in class, which arguments could be made to refute this argument. "
"While an average of 31 million people catch the viral flu each year in the US (compared to 16 million COVID-19 cases so far), the mortality rate from the flu seems to be perhaps 8 to 24 times lower than for COVID-19."
"Fewer people have caught COVID-19 than catch the viral flu in a given year, but the comparison is not entirely fair since we are not restricting social gatherings or wearing masks during viral flu seasons. A fair comparison would be what would have happened with COVID-19 infections if normal year practices were carried out. "
More than twice the number of people in the US have caught COVID-19 than catch the flu virus in a…
Chapter 25 Solutions
Campbell Biology In Focus, Loose-leaf Edition (3rd Edition)
Ch. 25.1 - Describe major events in the evolution of early...Ch. 25.1 - Explain why eukaryotes are said to be combination...Ch. 25.1 - Prob. 3CCCh. 25.2 - Summarize the evidence that choanoflagellates are...Ch. 25.2 - MAKE CONNECTlONS Describe how the origin of...Ch. 25.2 - Prob. 3CCCh. 25.3 - Briefly describe the organisms found in each of...Ch. 25.3 - MAKE CONNECTIONS Review Figures 7.2 and 8.5...Ch. 25.3 - Prob. 3CCCh. 25.3 - Prob. 4CC
Ch. 25.4 - Justify the claim that photosynthetic protists are...Ch. 25.4 - Prob. 2CCCh. 25.4 - Prob. 3CCCh. 25 - The oldest fossil eukaryote that can be resolved...Ch. 25 - Prob. 2TYUCh. 25 - Plastids that are surrounded by more than two...Ch. 25 - Prob. 4TYUCh. 25 - Prob. 5TYUCh. 25 - Based on the phylogenetic tree in Figure 25.10,...Ch. 25 - MAKE CONNECTIONS The bacterium Wolbachia is a...Ch. 25 - FOCUS ON EVOLUTION DRAW IT Medical researchers...Ch. 25 - FOCUS ON INTERACTIONS Organisms interact with each...Ch. 25 - SYNTHESIZE YOUR KNOWLEDGE These micrographs show...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Why do scientists think that all forms of life on earth have a common origin?
Genetics: From Genes to Genomes
True or false? Some trails are considered vestigial because they existed long ago.
Biological Science (6th Edition)
4.1 Write the symbols for the following elements.
a. copper
b. platinum
c. calcium
d. manganese
e. Iron
...
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
Gregor Mendel never saw a gene, yet he concluded that some inherited factors were responsible for the patterns ...
Campbell Essential Biology (7th Edition)
To test your knowledge, discuss the following topics with a study partner or in writing ideally from memory. Th...
HUMAN ANATOMY
An obese 55-year-old woman consults her physician about minor chest pains during exercise. Explain the physicia...
Biology: Life on Earth with Physiology (11th Edition)
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
- What is the relationship between the sickle cell mutation and the Plasmodium parasite? Would having the HbSA genotype still be advantageous in a region where such parasites are not common? Why or why not?arrow_forwardIn the above figure, it shows the typical propagation rate of a worm. Answer the following two questions: a) why does the start phase show a slow propagation? b) why does the finish phase show a slow propagationarrow_forwardVaccine development for diseases caused by protists (e.g., malaria, Chagas’ disease) has been much less successful than for bacterial or viral diseases. Discuss one biological reason and one geopolitical reason for this factarrow_forward
- Hi this is an intro paragraph for my short essay on antibiotic resistance connecting to natural selection and microbiology. please add or correct anything it needs!arrow_forwardPick all that are true If a bacterium with a gene that gives resistance to the antibiotic ampicillin is placed into medium without ampicillin, it may: Lose the gene because it is expensive to maintain if not giving a fitness advantage Pass the gene to another bacterium via horizontal gene transfer Take on viral metabolic genes Begin the drift process to gain fitness Pass the gene to its progeny cells Lose the gene because there is no selection for ampicillin resistancearrow_forwardSelect only the true statements about soil bacteriophages ahead: -Phages help on increasing soil biodiversity -Phages are nnonself replicating living infectious agents -Phages prevents low-generation-time- species from becoming dominant - Phages can infect protozoa -Phages are important in bacteria lateral gene transferarrow_forward
- Part 1A: After attending the Protista lab (Lab 2) of BIOL2101 course, and seeing all the amazingly different Protists that can be found in a single drop of natural water sources; Mohammed get excited to see the different types of protists that might be found in water from rain paddles in his family farm in Al-Seeb, therefore, he took a sample to a Biology lab at SQU. Mohammed added a drop of water on a slide and covered it with a coverslip. Then he observed the slide under the microscope (40x) and took pictures for the following microorganisms: A 1- How do you think organisms in figure A most probably acquire their nutrients? Explain your answer. ôi bor ti 2- Examining the details of the organism in figure B, what is the mechanism of movement? And which Phylum does it belong to? (nir ti 3- Mohammed took a sample of the water he collected from the farm and mixed it with distilled water. The next day, he observed the new sample under the microscope and was surprised to see that many…arrow_forwardPhages that destroy host cell DNA, direct synthesis of phageparticles, and cause lysis of the host cell are called:(a) Temperate phages(b) Prophages(c) Lysogenic phages(d) Virulent phages(e) Transductionsarrow_forwardExamining Table 20-4, what do you think would be theorder of mutations fixed during selection in a third evolving virus line? Would the mutations become fixed in thesame order as the TX or ID virus?arrow_forward
- Microtaxonomy (Species and Speciation) Colletotrichum gloeosporioides is a fungus that causes mango anthracnose. It's a devastating disease being avoided by mango farmers. For example, in the island province of Guimaras, Philippines, one cannot bring mango into the island to avoid contamination of the mango plantations. Guimaras produces the sweetest mango in the world. One challenge in the control of mango anthracnose is that C. gloeosporioides is a species complex. What is a complex and how do we provide clear delineation (if we can) among these closely related species?arrow_forwardThe insecticide DDT has been widely used to control the mosquitoes that carry malaria. How would you explain the fact that many mosquito populations are now resistant to DDT?arrow_forwardHow do Prions connect to unifying themes in biology and the cross cutting concepts? [use 2 examples of unifying themes and/ or crosscutting concepts]arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Infectious Diseases - How do we control them?; Author: Let's Learn Public Health;https://www.youtube.com/watch?v=2JWku3Kjpq0;License: Standard Youtube License