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With respect to nitrogen utilization, relatively few bacteria can use NH3 whereas many more can make ...
With respect to nitrogen utilization, relatively few bacteria can use NH3 whereas many more can make ...
With respect to nitrogen utilization, relatively few bacteria can use NH3 whereas many more can make use of N2.
[True or False]
SethHuddleston   19   2 Replies
5 years ago
In all cells, genes are composed of
In all cells, genes are composed of
In all cells, genes are composed of
A) nucleic acids.
B) mRNA.
C) proteins.
D) chaperones.
TheFulcan   19   3 Replies
5 years ago
Polycistronic transcription units are common in
Polycistronic transcription units are common in
Polycistronic transcription units are common in
A) Archaea.
B) Bacteria.
C) Eukarya.
D) both Archaea and Bacteria.
les123456   19   2 Replies
5 years ago
Throughout the living world, the genetic code is generally universal; however, there are slight variations.
Throughout the living world, the genetic code is generally universal; however, there are slight variations.
Throughout the living world, the genetic code is generally universal; however, there are slight variations.
[True or False]
riddhi   19   3 Replies
5 years ago
A selective medium is used to suppress the growth of certain bacteria in order to facilitate the ...
A selective medium is used to suppress the growth of certain bacteria in order to facilitate the ...
A selective medium is used to suppress the growth of certain bacteria in order to facilitate the growth of other bacteria.
[True or False]
sunjx   19   1 Reply
5 years ago
Chemotaxis in bacteria occurs through the use of
Chemotaxis in bacteria occurs through the use of
Chemotaxis in bacteria occurs through the use of
A) adaptation.
B) quorum sensing.
C) autoinduction.
D) a modified two-component system.
Cdeakle   19   2 Replies
5 years ago
A cocktail of 30 compounds was identified to harbor a corepressor, and subsequent separation and ...
A cocktail of 30 compounds was identified to harbor a corepressor, and subsequent separation and ...
A cocktail of 30 compounds was identified to harbor a corepressor, and subsequent separation and purification was performed to test individual compounds. Describe an experiment that would enable you to identify the specific compound that acts as a co
rvahey   19   2 Replies
5 years ago
Proteins MinC, MinD, and MinE interact to
Proteins MinC, MinD, and MinE interact to
Proteins MinC, MinD, and MinE interact to
A) help guide FtsZ to the cell midpoint.
B) initiate peptidoglycan synthesis.
C) assist chromosome segregation.
D) determine cell shape.
Nakeiat   19   2 Replies
5 years ago
Biofilm formation in Vibrio cholera is triggered by ________ cell densities and repressed by ...
Biofilm formation in Vibrio cholera is triggered by ________ cell densities and repressed by ...
Biofilm formation in Vibrio cholera is triggered by ________ cell densities and repressed by ________ cell densities.
A) high; high
B) low; low
C) high; low
D) low; high
Morgs   19   2 Replies
5 years ago
Mobile resistance genes encode enzymes that inactivate an antibiotic by altering its structure.
Mobile resistance genes encode enzymes that inactivate an antibiotic by altering its structure.
Mobile resistance genes encode enzymes that inactivate an antibiotic by altering its structure.
[True or False]
SAMt24   19   1 Reply
5 years ago
What is the purpose of the MreB protein in bacteria?
What is the purpose of the MreB protein in bacteria?
What is the purpose of the MreB protein in bacteria?
twylla01   19   3 Replies
5 years ago
________ of prokaryotic genomes are now available in public databases.
________ of prokaryotic genomes are now available in public databases.
________ of prokaryotic genomes are now available in public databases.
A) Dozens
B) Hundreds
C) Thousands
D) Millions
lover567   19   2 Replies
5 years ago
Paralogs always have the same function.
Paralogs always have the same function.
Paralogs always have the same function.
[True or False]
redesace90   19   2 Replies
5 years ago
Codon usage varies from one organism to the next.
Codon usage varies from one organism to the next.
Codon usage varies from one organism to the next.
[True or False]
rajbir   19   3 Replies
5 years ago
Early and late viral proteins are classified according to their relative
Early and late viral proteins are classified according to their relative
Early and late viral proteins are classified according to their relative
A) evolutionary appearance in virus genomes.
B) stability during infection.
C) time of synthesis following host infection.
D) transmission into virions.
ritvikc   19   1 Reply
5 years ago
Bacteriophages that have single-stranded genomes are specialized to minimize energy requirements ...
Bacteriophages that have single-stranded genomes are specialized to minimize energy requirements ...
Bacteriophages that have single-stranded genomes are specialized to minimize energy requirements because just one strand is necessary for replication.
[True or False]
travis   19   3 Replies
5 years ago
Lysogeny probably carries a strong selective advantage for the host cell because it
Lysogeny probably carries a strong selective advantage for the host cell because it
Lysogeny probably carries a strong selective advantage for the host cell because it
A) prevents cell lysis.
B) confers resistance to infection by viruses of the same type.
C) confers resistance to infection by viruses of a different type (or strai
sora   19   1 Reply
5 years ago
A plasmid may
A plasmid may
A plasmid may
A) replicate independently of the chromosome.
B) be transferred cell-to-cell during conjugation.
C) be integrated into the chromosome.
D) replicate independently of the chromosome, integrate into the chromosome, or be transferred ce
moonflowerz   19   1 Reply
5 years ago
Polyphasic taxonomy uses methods that include
Polyphasic taxonomy uses methods that include
Polyphasic taxonomy uses methods that include
A) phenotypic methods.
B) genotypic methods.
C) phylogenetic methods.
D) phenotypic, genotypic, and phylogenetic methods.
brendatanmy   19   2 Replies
5 years ago
Microbial ________ studies the diversity of microorganisms and links their phylogeny with ________.
Microbial ________ studies the diversity of microorganisms and links their phylogeny with ________.
Microbial ________ studies the diversity of microorganisms and links their phylogeny with ________.
A) taxonomy / genotype
B) phylogeny / phenotype
C) taxonomy / phenotype
D) systematics / taxonomy
bunbun11   19   2 Replies
5 years ago
Molecular phylogeny and rRNA analysis provided the evidence used to separate Bacteria and Archaea ...
Molecular phylogeny and rRNA analysis provided the evidence used to separate Bacteria and Archaea ...
Molecular phylogeny and rRNA analysis provided the evidence used to separate Bacteria and Archaea into distinct domains.
[True or False]
radiants   19   2 Replies
5 years ago
Phycoerythrin is
Phycoerythrin is
Phycoerythrin is
A) the red phycobiliprotein.
B) the blue phycobiliprotein.
C) a type of carotenoid.
D) a green carotenoid.
msee1021   19   3 Replies
5 years ago
Considering the relationship between oxidizers and reducers, which of the following pairs of ...
Considering the relationship between oxidizers and reducers, which of the following pairs of ...
Considering the relationship between oxidizers and reducers, which of the following pairs of microorganisms are NOT likely to form close associations or consortia?
A) purple sulfur bacteria and dissimilative sulfur-reducers
B) dissimilative sulfur
CJODAS   19   2 Replies
5 years ago
Dissimilatory iron-oxidation is a relatively new metabolism and is restricted to one unusual phylum ...
Dissimilatory iron-oxidation is a relatively new metabolism and is restricted to one unusual phylum ...
Dissimilatory iron-oxidation is a relatively new metabolism and is restricted to one unusual phylum of bacteria.
[True or False]
msee1021   19   2 Replies
5 years ago
Which genus would you most likely find in the photic layer of the oceans due to its abundance and ...
Which genus would you most likely find in the photic layer of the oceans due to its abundance and ...
Which genus would you most likely find in the photic layer of the oceans due to its abundance and aerobic chemoorganotrophic phenotype?
A) Acetobacter
B) Nitrosomonas
C) Paracoccus
D) Pelagibacter
Stones McGee   19   3 Replies
5 years ago
Biosynthesis of vitamin K (menaquinone) by ________ spp. inhabiting the ________ of humans is a ...
Biosynthesis of vitamin K (menaquinone) by ________ spp. inhabiting the ________ of humans is a ...
Biosynthesis of vitamin K (menaquinone) by ________ spp. inhabiting the ________ of humans is a potentially important mutualistic relationship for human health.
A) Bifidobacterium / intestinal tract
B) Bifidobacterium / stomach
C) Escherichia / in
Jeslinn   19   1 Reply
5 years ago
Which bacterial genus is LEAST related to the others listed?
Which bacterial genus is LEAST related to the others listed?
Which bacterial genus is LEAST related to the others listed?
A) Actinomyces
B) Mycobacterium
C) Nocardia
D) Streptomyces
shelbes1234   19   2 Replies
5 years ago
The cytoplasmic proteins of Halobacterium are
The cytoplasmic proteins of Halobacterium are
The cytoplasmic proteins of Halobacterium are
A) highly acidic.
B) highly basic.
C) generally neutral.
D) variable, depending on the species.
kortni916   19   2 Replies
5 years ago
Most of the Archaea are phenotypically quite similar.
Most of the Archaea are phenotypically quite similar.
Most of the Archaea are phenotypically quite similar.
[True or False]
Bunique556   19   2 Replies
5 years ago
Which group of amoebozoans is most likely to cause illness in humans?
Which group of amoebozoans is most likely to cause illness in humans?
Which group of amoebozoans is most likely to cause illness in humans?
A) dictyostelium
B) entamoebas
C) gymnamoebas
D) slime molds
brake   19   2 Replies
5 years ago
The amoebozoa use what structures for movement and feeding?
The amoebozoa use what structures for movement and feeding?
The amoebozoa use what structures for movement and feeding?
A) threadlike pseudopodia
B) cilia
C) flagella
D) lobe-shaped pseudopodia
MsCorrine   19   2 Replies
5 years ago
What unit is isotopic fractionation reported as?
What unit is isotopic fractionation reported as?
What unit is isotopic fractionation reported as?
A) parts per billion
B) parts per hundred
C) parts per thousand
D) parts per trillion
KaptainZ   19   2 Replies
5 years ago
Traditional enrichment culturing circumvents issues associated with weed species from overcoming the ...
Traditional enrichment culturing circumvents issues associated with weed species from overcoming the ...
Traditional enrichment culturing circumvents issues associated with weed species from overcoming the population.
[True or False]
zurainzlpt   19   3 Replies
5 years ago
Chemoheterotrophic bacteria are primary producers.
Chemoheterotrophic bacteria are primary producers.
Chemoheterotrophic bacteria are primary producers.
[True or False]
TArisorev   19   1 Reply
5 years ago
What would the result be when a soil is supplemented with S0?
What would the result be when a soil is supplemented with S0?
What would the result be when a soil is supplemented with S0?
A) dimethyl sulfide production due to mixotrophs
B) organic carbon production due to anaerobes
C) soil acidification due to chemolithotrophs
D) syntrophic utilization of sulfite
jmg89   19   2 Replies
5 years ago
Agricultural application of nitrogen fertilizer
Agricultural application of nitrogen fertilizer
Agricultural application of nitrogen fertilizer
A) reduces global warming by increasing the storage of carbon dioxide in plant biomass.
B) increases global warming by increasing microbial respiration in agricultural soils.
C) increases global warm
mewdie   19   3 Replies
5 years ago
Abiotic oxidation of Fe2+ requires oxygen and occurs rapidly when the pH is near 7.
Abiotic oxidation of Fe2+ requires oxygen and occurs rapidly when the pH is near 7.
Abiotic oxidation of Fe2+ requires oxygen and occurs rapidly when the pH is near 7.
[True or False]
nuppy   19   1 Reply
5 years ago
What is the advantage of enhanced biological phosphorus removal (EBPR) over chemical precipitation?
What is the advantage of enhanced biological phosphorus removal (EBPR) over chemical precipitation?
What is the advantage of enhanced biological phosphorus removal (EBPR) over chemical precipitation?
A) Chemical precipitation produces sludge containing arsenic.
B) EBPR removes significantly more phosphorus than chemical precipitation.
C) Signifi
wwashington2   19   1 Reply
5 years ago
Myc factors are
Myc factors are
Myc factors are
A) a type of strigolactone hormone.
B) lipochitin oligosaccharide signaling proteins produced by arbuscular mycorrhizae.
C) examples of chemicals that mycorrhizae obtain from the soil.
D) Carbohydrate structures that form connect
eberk12   19   1 Reply
5 years ago
Fibrobacteres comprise the greatest proportion of the bacterial species in ruminant guts.
Fibrobacteres comprise the greatest proportion of the bacterial species in ruminant guts.
Fibrobacteres comprise the greatest proportion of the bacterial species in ruminant guts.
[True or False]
AdamPG14   19   3 Replies
macimov
5 years ago
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