Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 23.5, Problem 1CR
Summary Introduction
Agrobacterium tumefaciens is the causative agent of crown gall disease in most of the eudicot species. It is a Gram-negative rod shaped bacteria that reside in the soil. This bacterium is useful in inserting the gene of interest into a plant cell or plant. An infection in the root of plants by the species of rhizobia in the leguminous plants results in the formation of root nodules.
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Please answer q3
Respond to the following in a minimum of 175 words:
How might CRISPR-Cas 9 be used in research or, eventually, therapeutically in patients?
What are some potential ethical issues associated with using this technology?
Do the advantages of using this technology outweigh the disadvantages (or vice versa)? Explain your position.
You are studying the effect of directional selection on body height in three
populations (graphs a, b, and c below).
(a) What is the selection differential? Show your calculation. (2 pts)
(b) Which population has the highest narrow sense heritability for height?
Explain your answer. (2 pts)
(c) If you examined the offspring in the next generation in each population,
which population would have the highest mean height? Why? (2 pts)
(a)
Midoffspring height (average height of offspring)
Short
Short
Short
Short
(c)
Short
(b)
Short
Tall
Short
Tall
Short
Short
Tall
Midparent height
(average height of
Mean of population = 65 inches
Mean of breading parents = 70 inches
Mean of population = 65 inches
Mean of breading parents = 70 inches
Mean of population = 65 inches
Mean of breading parents = 70 inches
Chapter 23 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 23.1 - What two microbes form a partnership in the lichen...Ch. 23.1 - Prob. 2MQCh. 23.1 - Prob. 1CRCh. 23.2 - What is the evidence that "Chlorochromatium...Ch. 23.2 - Prob. 2MQCh. 23.2 - How might nutrients be shuttled between phototroph...Ch. 23.2 - QWhat mechanisms do the consortia use to orient at...Ch. 23.3 - Prob. 1MQCh. 23.3 - Prob. 2MQCh. 23.3 - What is a bacteroid and what occurs within it?...
Ch. 23.3 - What are the major similarities and differences...Ch. 23.3 - QDescribe the steps in the development of root...Ch. 23.4 - Prob. 1MQCh. 23.4 - Prob. 2MQCh. 23.4 - How do mycorrhizal fungi promote plant diversity?Ch. 23.4 - Prob. 1CRCh. 23.5 - Prob. 1MQCh. 23.5 - How do the vir genes differ from T-DNA in the Ti...Ch. 23.5 - How has an understanding of crown gall disease...Ch. 23.5 - Prob. 1CRCh. 23.6 - Prob. 1MQCh. 23.6 - What are the consequences of symbiont genome...Ch. 23.6 - How could it be determined if a symbiont and its...Ch. 23.6 - QHow is it possible for aphids to feed only on the...Ch. 23.7 - How are anoxic conditions maintained in the...Ch. 23.7 - Why does reductive acetogenesis predominate over...Ch. 23.7 - Prob. 3MQCh. 23.7 - QHow do the microbial communities of higher and...Ch. 23.8 - Prob. 1MQCh. 23.8 - Prob. 2MQCh. 23.8 - How is the correct bacterial symbiont selected in...Ch. 23.9 - Prob. 1MQCh. 23.9 - What are the similarities of the obligate...Ch. 23.9 - Prob. 3MQCh. 23.9 - Prob. 1CRCh. 23.10 - What evidence suggest that the nematodes and their...Ch. 23.10 - What prevents other bacteria from colonizing the...Ch. 23.10 - QWhy are entomopathogenic nematodes so attractive...Ch. 23.11 - Prob. 1MQCh. 23.11 - What are the two mechanisms of Symbiodinium...Ch. 23.11 - Prob. 3MQCh. 23.11 - Prob. 1CRCh. 23.12 - Prob. 1MQCh. 23.12 - Prob. 2MQCh. 23.12 - Prob. 1CRCh. 23.13 - Prob. 1MQCh. 23.13 - Prob. 2MQCh. 23.13 - Prob. 3MQCh. 23.13 - QGive an example of a single microbial species...Ch. 23 - Imagine that you have discovered a new animal that...Ch. 23 - Prob. 2AQ
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