You culture bacteria from the soil at a toxic waste dump on an agar plate and pick a single bacterium from which you prepare DNA. The isolated organism is a new, previously uncharacterized species. You perform PCR amplification of this DNA using primers to amplify a short segment of ribosomal DNA. When you use BLAST to find similar sequences, you find the following results. Organism DNA sequence identity % sequence E-value coverage E. coli 84% e-10 40% Streptococcus 88% 40% e-12 Burkhoderia 98% 40% e-15 Microbacterium oxydans 100% 80% e-30 Based on the data in the table, which statement about the relationships of the organisms is INCORRECT? The percent identity comparing amino acid sequences will likely be higher than the percent identity comparing DNA sequences. The new sequence you isolated is homologous to all the sequences shown. Microbacterium oxydans likely shares a more recent common ancestor with the unknown than E. coli does. All four organisms shown are likely to have the functional homology of being able to survive in a toxic waste dump.
You culture bacteria from the soil at a toxic waste dump on an agar plate and pick a single bacterium from which you prepare DNA. The isolated organism is a new, previously uncharacterized species. You perform PCR amplification of this DNA using primers to amplify a short segment of ribosomal DNA. When you use BLAST to find similar sequences, you find the following results. Organism DNA sequence identity % sequence E-value coverage E. coli 84% e-10 40% Streptococcus 88% 40% e-12 Burkhoderia 98% 40% e-15 Microbacterium oxydans 100% 80% e-30 Based on the data in the table, which statement about the relationships of the organisms is INCORRECT? The percent identity comparing amino acid sequences will likely be higher than the percent identity comparing DNA sequences. The new sequence you isolated is homologous to all the sequences shown. Microbacterium oxydans likely shares a more recent common ancestor with the unknown than E. coli does. All four organisms shown are likely to have the functional homology of being able to survive in a toxic waste dump.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:You culture bacteria from the soil at a toxic waste dump on an agar plate and pick a single bacterium from which you prepare DNA. The isolated organism is a new, previously
uncharacterized species. You perform PCR amplification of this DNA using primers to amplify a short segment of ribosomal DNA. When you use BLAST to find similar sequences,
you find the following results.
Organism
DNA sequence identity % sequence
E-value
coverage
Е. coli
84%
40%
e
-10
Streptococcus
88%
40%
e 12
Burkhoderia
98%
40%
e 15
Microbacterium oxydans
100%
80%
e-30
Based on the data in the table, which statement about the relationships of the organisms is INCORRECT?
The percent identity comparing amino acid sequences will likely be higher than the percent identity comparing DNA sequences.
The new sequence you isolated is homologous to all the sequences shown.
Microbacterium oxydans likely shares a more recent common ancestor with the unknown than E. coli does.
All four organisms shown are likely to have the functional homology of being able to survive in a toxic waste dump.
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