Exam 6: Microbial Genomics

Explore all topics

Chromosomal islands are presumed to have a "foreign" origin based upon three observations.What are these observations and how do they indicate that chromosomal islands are "foreign" in origin?

Free

(Essay)

4.7/5

(37)

Question 1

Correct Answer:

Verified

The presence of a sequence flanked by inverted repeats suggests transposition brought in the sequence.An island is also likely "foreign" when there is a dissimilar composition of bases (GC%)or a different codon bias.Lastly,chromosomal islands typically contain genes that are related in function,such as virulence or biodegradation.

Heterotrophs need only a few more genes than autotrophs.

Free

(True/False)

4.9/5

(35)

Question 2

Correct Answer:

Verified

False

Genes for DNA replication and transcription make up only a small fraction of the typical prokaryotic genome.

Free

(True/False)

4.9/5

(36)

Question 3

Correct Answer:

Verified

True

Most mobile DNA consists of

(Multiple Choice)

4.8/5

(32)

Question 4

Compounds such as pyruvate,acetyl-CoA,fructose-6-phosphate,oxaloacetate,and other small organic compounds could be part of a(n)

(Multiple Choice)

4.8/5

(27)

Question 5

Summarize the evolution of sequencing technology beginning with the Sanger method.

(Essay)

4.8/5

(30)

Question 6

When compared with Bacteria,species of Archaea seem to devote a higher percentage of their genomes to genes encoding proteins involved in

(Multiple Choice)

4.9/5

(38)

Question 7

What process allows evolution to "experiment" with genes to create novel functions? How is this manifested in extant genes (presently existing)and their relationships to each other?

(Essay)

4.7/5

(35)

Question 8

Microorganisms that grow in extreme environments typically contain larger genomes when compared to microbes that grow in non-extreme environments.

(True/False)

4.9/5

(41)

Question 9

The 140 kbp genome containing many short repeats,ribosomal RNA genes,one RNA polymerase gene (rpo)and one RubisCO gene (rbcL)is most likely from a(n)

(Multiple Choice)

4.8/5

(34)

Question 10

The evolutionary origin of mitochondria is demonstrated by which of the following key genomic characteristics?

(Multiple Choice)

4.9/5

(26)

Question 11

Genomic analysis led to the discovery that pathogenic organisms often lack genes for amino acid biosynthesis.

(True/False)

4.8/5

(33)

Question 12

Codon usage and even the genetic code itself varies from one organism to the next.

(True/False)

4.9/5

(43)

Question 13

The pan genome of a species is the genomic content that is

(Multiple Choice)

4.9/5

(32)

Question 14

Explain horizontal gene transfer and demonstrate how this phenomenon has complicated evolutionary studies using a diagram that illustrates phylogenetic relationships between organisms and genes.

(Essay)

4.7/5

(29)

Question 15

Comparative genomics helps us to understand evolutionary relationships between organisms.

(True/False)

4.9/5

(28)

Question 16

Mobile DNA elements are more common in the genomes of

(Multiple Choice)

4.8/5

(39)

Question 17

Explain how codon bias and GC content can be used to detect horizontal gene transfer within a genome.

(Essay)

4.8/5

(41)

Question 18

Genes from different sources that are related in sequence due to shared evolutionary ancestry are called genes,and groups of such genes are known as .

(Multiple Choice)

4.8/5

(34)

Question 19

Transcriptome analysis is useful in relation to genome analysis because

(Multiple Choice)

4.9/5

(33)

Question 20

Showing 1 - 20 of 82

Exam 6: Microbial Genomics

Chromosomal islands are presumed to have a "foreign" origin based upon three observations.What are these observations and how do they indicate that chromosomal islands are "foreign" in origin?

Heterotrophs need only a few more genes than autotrophs.

Genes for DNA replication and transcription make up only a small fraction of the typical prokaryotic genome.

Most mobile DNA consists of

Compounds such as pyruvate,acetyl-CoA,fructose-6-phosphate,oxaloacetate,and other small organic compounds could be part of a(n)

Summarize the evolution of sequencing technology beginning with the Sanger method.

When compared with Bacteria,species of Archaea seem to devote a higher percentage of their genomes to genes encoding proteins involved in

What process allows evolution to "experiment" with genes to create novel functions? How is this manifested in extant genes (presently existing)and their relationships to each other?

Microorganisms that grow in extreme environments typically contain larger genomes when compared to microbes that grow in non-extreme environments.

The 140 kbp genome containing many short repeats,ribosomal RNA genes,one RNA polymerase gene (rpo)and one RubisCO gene (rbcL)is most likely from a(n)

The evolutionary origin of mitochondria is demonstrated by which of the following key genomic characteristics?

Genomic analysis led to the discovery that pathogenic organisms often lack genes for amino acid biosynthesis.

Codon usage and even the genetic code itself varies from one organism to the next.

The pan genome of a species is the genomic content that is

Explain horizontal gene transfer and demonstrate how this phenomenon has complicated evolutionary studies using a diagram that illustrates phylogenetic relationships between organisms and genes.

Comparative genomics helps us to understand evolutionary relationships between organisms.

Mobile DNA elements are more common in the genomes of

Explain how codon bias and GC content can be used to detect horizontal gene transfer within a genome.

Genes from different sources that are related in sequence due to shared evolutionary ancestry are called ________ genes,and groups of such genes are known as ________.

Transcriptome analysis is useful in relation to genome analysis because

Microorganisms and Microbiology

Microbial Cell Structure and Function

Microbial Metabolism

Molecular Biology

Microbial Growth and Control

Metabolic Regulation

Viruses and Virology

Viral Genomes and Diversity

Genetics of Bacteria and Archaea

Genetic Engineering and Biotechnology

Microbial Evolution and Systematics

Metabolic Diversity of Microorganisms

Functional Diversity of Bacteria

Diversity of Bacteria

Diversity of Archaea

Diversity of Eukaryotic Microorganisms

Methods in Microbial Ecology

Microbial Ecosystems

Nutrient Cycles

Microbiology of the Built Environment

Microbial Symbioses

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology

Epidemiology

Person-To-Person Bacterial and Viral Diseases

Vectorborne and Soilborne Bacterial and Viral Diseases

Water and Food As Vehicles of Bacterial Diseases

Eukaryotic Pathogens: Fungal and Parasitic Diseases

Filters

Genes from different sources that are related in sequence due to shared evolutionary ancestry are called genes,and groups of such genes are known as .