PRESCOTT'S MICROBIO W/PROCTORIO
PRESCOTT'S MICROBIO W/PROCTORIO
11th Edition
ISBN: 9781264731060
Author: WILLEY
Publisher: MCG
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Chapter 19, Problem 1AL

Consider the fact that the use of 16S rRNA sequencing as a taxonomic and phylogenetic tool has resulted in tripling the number of bacterial phyla. Why has the advent of this genetic technique expanded the currently accepted number of microbial phyla?

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In studying Lokiarchaeota, researchers identified eukaryotic signature genes and used this information to better understand the relationship between archaeans and eukaryotes. Many other types of genetic analysis can be used that focus on certain types of genes. One example of this is multilocus sequence typing (MLST), which focuses on examining genes called housekeeping genes. Microbes encode both housekeeping and pathogenic genes in their genome. Drag the examples of genes to the correct bins to indicate whether they are housekeeping genes, pathogenic genes, or eukaryotic signature genes. Place the phrase describing a gene product in the correct bin. ► View Available Hint(s) peptidoglycan synthesis genes Housekeeping genes membrane remodeling genes cytoskeletal genes membrane lipid genes Pathogenic genes endotoxin genes Reset ribosomal genes exotoxin genes Eukaryotic signature genes Help
Let's say that you're a scientist trying to analyze newly sequenced bacterial DNA genomes from an environmental sample of rainforest soil, and your first task is to organize all of the genomes you find into a phylogenetic tree. If you couldn't use the 16S rRNA gene sequence to create the tree, which of these alternative genes would work best for your task of creating a tree that works for all the bacteria in your sample? The gene for Bacteriochlorophyll A A gene for an RNA polymerase component protein The first gene in the histidine biosynthesis pathway The first gene in the LPS synthesis pathway
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PRESCOTT'S MICROBIO W/PROCTORIO

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Bacterial Genomics and Metagenomics; Author: Quadram Institute;https://www.youtube.com/watch?v=_6IdVTAFXoU;License: Standard youtube license