Gene Regulation In Prokaryotes - Genetics From Genes to Genomes | Biology+

Course

Genetics

Study Pack

Set 1: Genetics: the Study of Biological Information

Set 2: Mendels Principles of Heredity

Set 3: Extensions to Mendels Laws

Set 4: The Chromosome Theory of Inheritance

Set 5: Linkage, Recombination, and the Mapping of Genes on Chromosomes

Set 6: DNA Structure, Replication, and Recombination

Set 7: Anatomy and Function of a Gene: Dissection Through Mutation

Set 8: Gene Expression: the Flow of Information From Dna to Rna to Protein

Set 9: Digital Analysis of Dna

Set 10: Genome Annotation

Set 11: Analyzing Genomic Variation

Set 12: The Eukaryotic Chromosome

Set 13: Chromosomal Rearrangements and Changes in Chromosome Number

Set 14: Bacterial Genetics

Set 15: Organellar Inheritance

Set 16: Gene Regulation in Prokaryotes

Set 17: Gene Regulation in Eukaryotes

Set 18: Manipulating the Genomes of Eukaryotes

Set 19: The Genetic Analysis of Development

Set 20: The Genetics of Cancer

Set 21: Variation and Selection in Populations

Set 22: The Genetics of Complex Traits

Set 16 Gene Regulation In Prokaryotes

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Set 16 Gene Regulation In Prokaryotes

(Multiple Choice)

Free

A crucial step in the regulation of most bacterial genes occurs

A)at transcription initiation.
B)during RNA splicing.
C)during nuclear export of mRNA.
D)when nonsense suppressors translate mRNAs.

Answer

(Multiple Choice)

Free

What term describes regulation of the trp operon that can occur even in trpR− mutants, thus suggesting that the mechanism is repressor-independent?

A)modulation
B)derepression
C)attenuation
D)amplification

Answer

(Multiple Choice)

Free

How does tryptophan, the end product of the trp operon, function in the regulation of the operon?

A)Trp binds to and inhibits the repressor, thus allowing transcription of the operon.
B)Trp binds to and activates the repressor, which then binds to DNA to allow transcription of the operon.
C)Trp binds directly to DNA and inhibits transcription of the operon.
D)Trp binds to and changes the conformation of the repressor, which can then bind DNA and block transcription of the operon.

Answer