Homework answers / question archive / University of Houston MICRO 3332 Quiz 6 1)Which of the following among A-D would not be involved in some part of the process of translation of a bacterial gene? a

University of Houston MICRO 3332 Quiz 6 1)Which of the following among A-D would not be involved in some part of the process of translation of a bacterial gene? a

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University of Houston

MICRO 3332

Quiz 6

1)Which of the following among A-D would not be involved in some part of the process of translation of a bacterial gene?

a.            Sigma factor

b.            Shine-Delgarno sequence

c.             Polysome formation

d.            Messenger RNA

e.            A-D are all involved in translation

2.            Most structural genes of bacteria are grouped together and transcribed from a single      ; immediately following this sequence is the      that intereacts with a regulatory protein to affect transcription of the genes

a.            Regulon; promoter

b.            Ribosome; Shine-Delgarno sequence

c.             Promoter; operator d. Promoter; regulon

e. Shine-Delgarno sequence; operator

3.            Which statement(s) among A-D is/are not applicable to plasmids?

a.            They only replicate the same time as the larger chromosome

b.            A plasmid may integrate into the chromosome

c.             They may be of low or high copy number

d.            Plasmids undergoing conjugation duplicate themselves by rolling circle replication

e.            Two of the above statements are not applicable to plasmids

4.            GroEL/ES proteins and DNA K proteins

a.            Are involved in polyribosome formation

b.            Interact with other proteins

c.             Are regulatory proteins that bind operator sequences

d.            Bind and alter DNA sequences e. Two of the above are correct

5.            Transformation

a.            Is the process by which a bacterium converts genetic information into a protein

b.            May involve the formation and accumulation of competence factors

c.             Requires cell-to-cell contact

d.            Is a process initiated by the detection of DNA in the external environment of a bacterium

e.            Two of A-D are correct

f.             Three of A-D are correct

6.            Which sequence below shows increasing numbers of genes as one proceeds from left to right?

a.            Genome, gene, regulon, operon

b.            Gene, operon, regulon, genome

c.             Operon, gene, genome, regulon

d.            Gene, genome, operon, regulon

7.            Genomic islands

 

a.            Contain genes of similar function

b.            Typically represent the flexible gene pool of a bacterial population

c.             May possess genes related to pathogenicity or symbiosis

d.            Are typically acquired by horizontal gene transfer

e.            All of the above are correct

8.            The recipient of Hfr conjugation                becomes an F+ cell a. Never

b.            Usually

c.             Rarely

d.            Always

e.            Frequently

9.            In order to transfer, an F factor must have which of the following?

a.            OriV and its own DNA polymerase

b.            OriV and tra genes

c.             OriT and tra genes

d.            OriT and its own DNA polymerase

e.            OriT, tra genes, and its own DNA polymerase

10.          Which among A-D is false regarding bacterial operons?

a.            The operator of an operon serves as a regulatory/control element

b.            They possess a single promoter

c.             The structural genes of an operon will be components of different metabolic pathways

d.            The transcript of an operon will be an RNA copy of all the structural genes contained in a single polynucleotide sequence

e.            None of A-D are false; all are true statements

11.          Which among A-E is false?

a.            Rolling circle replication: applies to plasmids

b.            Regulon: multiple genes transcribed from a single promoter

c.             Operator: control/regulatory element

d.            Sense DNA strand: coding strand

e.            -35, -10 sequence: promoter binding

f.             None of A-E are false