CUSTOM BIOLOGY
19th Edition
ISBN: 9781323945490
Author: Urry
Publisher: Pearson Custom Publishing
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Chapter 28.6, Problem 4CC
MAKE CONNECTIONS Ø 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 28.16 and Concept 23.4.)
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Phylogenetic with branch lengths scaled in genetic distance
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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…
Give typing answer with explanation and conclusion
In thinking about the clinical application of phylogenetics, discuss the role of phylogenetics in these areas.
a) Predictions of drug resistance
b) Identifying the origin of an outbreak
c)Predicting the spread of a disease
The theory of the endosymbiotic origin of mitochondria and chloroplasts was first proposed by the biologist Lynn
Which of the following statements provides support for the theory of endosymbiosis?
1. All the genes found in chloroplasts are homologous to genes found in the nucleus of eukaryotic cell.
2. Mitochondria contain their own ribosomes.
3. Proteins need a targeting sequence to be imported into a chloroplast.
4. Mitochondria can generate a proton gradient and harness it to synthesize ATP.
O A. 1, 2 and 3
B. 1 and 3
C. 2 and 4
D. 4 only
E. All of 1, 2, 3 and 4 are correct.
Chapter 28 Solutions
CUSTOM BIOLOGY
Ch. 28.1 - Cite at least four examples of structural and...Ch. 28.1 - Summarize the role of endosymbiosis in eukaryotic...Ch. 28.1 - Prob. 3CCCh. 28.2 - Why do some biologists describe the mitochondria...Ch. 28.2 - WHAT IF? DNA sequence data for a diplomonad, a...Ch. 28.3 - Explain why forams have such a well-preserved...Ch. 28.3 - WHAT IF? Would you expect the plastid DNA of...Ch. 28.3 - Prob. 3CCCh. 28.3 - Prob. 4CCCh. 28.4 - Contrast red algae and brown algae.
Ch. 28.4 - Why is it accurate to say that Ulva is truly...Ch. 28.4 - Prob. 3CCCh. 28.5 - Contrast the pseudopodia of amoebozoans and...Ch. 28.5 - Prob. 2CCCh. 28.5 - Prob. 3CCCh. 28.6 - Justify the claim that photosynthetic protists are...Ch. 28.6 - Prob. 2CCCh. 28.6 - WHAT IF? High water temperatures and pollution...Ch. 28.6 - MAKE CONNECTIONS The bacterium Wolbachia is a...Ch. 28 - Describe similarities and differences between...Ch. 28 - What evidence indicates that the excavates form a...Ch. 28 - Prob. 28.3CRCh. 28 - On what basis do systematists place plants in the...Ch. 28 - Describe a key feature for each of the main...Ch. 28 - Prob. 28.6CRCh. 28 - Plastids that are Surrounded by more than two...Ch. 28 - Biologists think that endosymbiosis gave rise to...Ch. 28 - Prob. 3TYUCh. 28 - According to the phylogeny presented in this...Ch. 28 - In a life cycle with alternation of generations,...Ch. 28 - Based on the phylogenetic tree in Figure 28.2,...Ch. 28 - Prob. 7TYUCh. 28 - SCIENTIFIC INQUIRY Applying the If then logic of...Ch. 28 - WRITE ABOUT A THEME: INTERACTIONS Organisms...Ch. 28 - SYNTHESIZE YOUR KNOWLEDGE This micrograph show's a...
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