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 13.6, Problem 1MQ
- What is the difference between the core and pan genomes of a given species?
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Imagine you are a botanist. Below are characteristics of a never-before described plant species recently identified as part of the ‘All Taxa Biodiversity Inventory’ (ATBI).
Field Notes: Specimen collected from shaded area along stream in South Cumberland State Park (Grundy County, TN).
Laboratory Analysis:
Body: Large leaves emerging from underground rhizome.
Size: 63 cm
Chromosomal Analysis: Plant body is diploid—chromosome number of 44.
Lignin test: Positive
Cuticle: Present
Leaves: Present—large with branched veins. Underside has sori (containing haploid spores).
Roots: Present—branch from the inside.
Stem: Present—vascular tissue (xylem & phloem) present.
Life History: Diploid sporophyte dominant generation. Haploid spores germinate into heart-shaped, haploid, gametophyte. Water required for fertilization; no seed is produced. Diploid zygote develops into sporophyte.
Explain which domain, kingdom and phylum you believe this plant should be classified…
CUÁ
Glycine
A C C
Newly formed molecule
Glycine Arginine Proline
Alanine
A C C
CC G
GGAUUGGUGGGGC
Structure X
I
mRNA
Adaptations to a Changing Environment
Why is it necessary for organisms to have the ability to adapt?
Why is the current environment making it difficult for organisms like the monarch butterfly to adapt?
Explain how organisms develop adaptations.
Chapter 13 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 13.1 - What characteristics would have made the surface...Ch. 13.1 - How do we know when oceans were first present on...Ch. 13.1 - What lines of reasoning support the hypothesis...Ch. 13.1 - What is LUCA, and what is a plausible explanation...Ch. 13.2 - Why is the origin of cyanobacteria considered a...Ch. 13.2 - What caused the development of banded iron...Ch. 13.2 - What lines of evidence indicate that microbial...Ch. 13.2 - Why was the origin of cyanobacteria of such...Ch. 13.3 - What kinds of evidence support the three-domain...Ch. 13.3 - What is LUCA and what are some of its...
Ch. 13.3 - Which of the three domains is the least ancient?Ch. 13.3 - What evidence supports the classification of life...Ch. 13.4 - What evidence supports the idea that the...Ch. 13.4 - In what ways are modern eukaryotes a combination...Ch. 13.4 - Describe the different hypotheses for the...Ch. 13.4 - What is the endosymbiotic hypothesis for the...Ch. 13.5 - What are the different processes that give rise to...Ch. 13.5 - What is the difference between selection and...Ch. 13.5 - In the experiment of Figure 13.12, why did the...Ch. 13.5 - What is fitness? To what degree does fitness...Ch. 13.6 - What is the difference between the core and pan...Ch. 13.6 - What kind of recombination might have the greatest...Ch. 13.6 - What effects do deletions have on the evolution of...Ch. 13.6 - What are some processes that influence the content...Ch. 13.7 - How are DNA sequences obtained for phylogenetic...Ch. 13.7 - What does a phylogenetic tree depict?Ch. 13.7 - Prob. 3MQCh. 13.7 - What is the difference between a gene tree and an...Ch. 13.8 - What is the difference between taxonomy and...Ch. 13.8 - What are some key criteria from the phylogenetic...Ch. 13.8 - How many species of Bacteria and Archaea have been...Ch. 13.8 - What is the "species problem" and why is the...Ch. 13.9 - What class of genes is used in MLST analyses?Ch. 13.9 - How is ribotyping different from rep-PCR?Ch. 13.9 - What is FAME analysis?Ch. 13.9 - Prob. 1CRCh. 13.10 - What roles do culture collections play in...Ch. 13.10 - What is the IJSEM and what taxonomic function does...Ch. 13.10 - Why might viable cell cultures be of more use in...Ch. 13.10 - Prob. 1CRCh. 13 - Compare and contrast the physical and chemical...Ch. 13 - For the following sequences, construct the...Ch. 13 - Imagine that you have been given several bacterial...Ch. 13 - Imagine that you have discovered a new form of...
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