Question 1

A three base sequence on mRNA is called a(n)

Accepted Answer

A)  codon.
B)  exon.
C)  anticodon.
D)  intron.E) None of the above
F) A) and C)

Question 2

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format.
  As an RN working in a research unit, you are responsible for data and specimen collection for multiple research studies. A patient is admitted as a participant in a study focused on the role of tRNA mutations in Alzheimer’s disease. The 78-year-old male is accompanied by his wife and daughter. Prior to obtaining the first blood specimen, you provide education regarding the importance of the study and the overall process of protein synthesis. 
-Which tRNA anticodon would properly base-pair with an mRNA codon of cytosine-uracil-guanine (CUG) ?

Accepted Answer

A)  GTC
B)  ATC
C)  GAC
D)  UCAE) A) and C)
F) A) and B)

Question 3

Okazaki fragments are attached to the growing end of the lagging strand by

Accepted Answer

A)  DNA ligases.
B)  DNA polymerases.
C)  DNA helicases.
D)  DNA gyrases
E)  primases.F) B) and C)
G) D) and E)

Question 4

The jumping of a gene from one location to another is done by

Accepted Answer

A)  conjugation.
B)  transposons.
C)  transformation.
D)  transduction.
E)  transmission.F) A) and E)
G) C) and E)

Question 5

Reverse transcriptase is used to make cDNA from an RNA template.

Accepted Answer

A) True 
 B)False

Question 6

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format.
  A 59-year-old female has been diagnosed with Escherichia coli infection following the consumption of contaminated meat. The patient is exhibiting a high fever, severe abdominal cramping, and diarrhea. As the RN, you provide supportive care and fluid resuscitation as ordered. You are familiar with the E. coli bacterium, and provide education to the patient and her family regarding the genetics of this bacterium. 
-You also indicate to the patient that genetic information can be acquired by bacterial cells in other ways.Which of the following is a correct statement regarding these processes?

Accepted Answer

A)  "Transformation requires the formation of a pilus for genetic exchange to occur."
B)  "Transposition involves the transfer of genetic information to bacterial cells directly from their environment."
C)  "Transfection is a phenomenon of prokaryotic cells."
D)  "Transduction involves the transfer of genetic information from a bacteriophage to a bacterial cell."E) All of the above
F) A) and D)

Question 7

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format.
  A 59-year-old female has been diagnosed with Escherichia coli infection following the consumption of contaminated meat. The patient is exhibiting a high fever, severe abdominal cramping, and diarrhea. As the RN, you provide supportive care and fluid resuscitation as ordered. You are familiar with the E. coli bacterium, and provide education to the patient and her family regarding the genetics of this bacterium. 
-In gram-negative bacteria,like

Accepted Answer

A)  "It is a large,double-stranded linear piece of DNA."
B)  "It is found in F- cells only."
C)  "It controls the process of transduction in bacterial cells."
D)  "It encodes the information to create a pilus."
E)  coli,the fertility factor is a plasmid possessed by the bacterium that will donate its DNA to a recipient cell.Which of the following statements,by the patient,demonstrates understanding of this plasmid?F) C) and D)
G) B) and E)

Question 8

The transfer of DNA fragments from a dead cell to a live,competent recipient cell that results in a changed recipient cell is

Accepted Answer

A)  transduction.
B)  conjugation.
C)  transformation.
D)  transmission.
E)  mitosis.F) C) and D)
G) A) and B)

Question 9

When DNA is heated,the two strands will separate.

Accepted Answer

A) True 
 B)False

Question 10

Each nucleotide is composed of

Accepted Answer

A)  one phosphate,one nitrogenous base,and one sugar.
B)  one phosphate,one nitrogenous base,and two sugars.
C)  two phosphates,one nitrogenous base,and one sugar.
D)  two phosphates,one nitrogenous base,and two sugars.
E)  one phosphate,two nitrogenous bases,and one sugar.F) D) and E)
G) None of the above

Question 11

The expression of genetic traits is the

Accepted Answer

A)  genome.
B)  genotype.
C)  proteome.
D)  phenotype.
E)  proteotype.F) A) and B)
G) B) and E)

Question 12

Three consecutive bases in the DNA of a gene represent the code for one

Accepted Answer

A)  protein.
B)  nucleotide.
C)  amino acid.
D)  purine.
E)  None of the choices is correct.F) B) and D)
G) C) and D)

Question 13

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format.
  A 59-year-old female has been diagnosed with Escherichia coli infection following the consumption of contaminated meat. The patient is exhibiting a high fever, severe abdominal cramping, and diarrhea. As the RN, you provide supportive care and fluid resuscitation as ordered. You are familiar with the E. coli bacterium, and provide education to the patient and her family regarding the genetics of this bacterium. 
-As the RN,you instruct the family that the transfer of genetic material can involve contact between two bacterial cells.DNA can pass from one cell to the other through a pilus during this process,which is called

Accepted Answer

A)  transformation.
B)  conjugation.
C)  specialized transduction.
D)  generalized transduction.E) A) and C)
F) A) and B)

Question 14

RNA molecules differ from DNA molecules because only RNA

Accepted Answer

A)  has ribose.
B)  has uracil.
C)  is typically one strand of nucleotides.
D)  does not have thymine.
E)  All of the choices are correct.F) B) and C)
G) C) and E)

Question 15

The site where the old DNA strands separate and new DNA strands will be synthesized is called the

Accepted Answer

A)  primer.
B)  Okazaki fragment.
C)  template.
D)  rolling circle.
E)  replication fork.F) A) and B)
G) B) and E)

Question 16

The enzymes that can proofread replicating DNA,detect incorrect bases,excise them,and correctly replace them are

Accepted Answer

A)  DNA ligases.
B)  DNA polymerases.
C)  DNA helicases.
D)  DNA gyrases.
E)  primases.F) C) and D)
G) B) and C)

Question 17

The various techniques by which scientists manipulate DNA in the lab are called

Accepted Answer

A)  genetic engineering.
B)  biotechnology.
C)  recombinant DNA.
D)  gel electrophoresis.
E)  gene probes.F) All of the above
G) B) and C)

Question 18

Synthesis of an inducible enzyme requires

Accepted Answer

A)  repressor alone bound to operator.
B)  substrate bound to repressor.
C)  substrate bound to promoter.
D)  corepressor and repressor binding to operator.
E)  None of the choices is correct.F) B) and E)
G) All of the above

Question 19

Which of the following is not a type of bacterial DNA recombination?

Accepted Answer

A)  transformation
B)  conjugation
C)  mitosis
D)  transduction
E)  meiosisF) B) and D)
G) A) and E)

Question 20

DNA polymerase III

Accepted Answer

A)  is needed for adding nucleotides during mRNA synthesis.
B)  synthesizes new DNA only in the 5' to 3' direction.
C)  cannot add nucleotides to the lagging strand.
D)  synthesizes an RNA primer.
E)  All of the choices are correct.F) A) and D)
G) C) and E)

Exam 8: Microbial Genetics and Genetic Engineering

The various techniques by which scientists manipulate DNA in the lab are called

Correct Answer
verified

A three base sequence on mRNA is called a(n)

Correct Answer
verified

The enzymes that can proofread replicating DNA,detect incorrect bases,excise them,and correctly replace them are

Correct Answer
verified

RNA molecules differ from DNA molecules because only RNA

Correct Answer
verified

Correct Answer
verified

Three consecutive bases in the DNA of a gene represent the code for one

Correct Answer
verified

DNA polymerase III

Correct Answer
verified

The jumping of a gene from one location to another is done by

Correct Answer
verified

Each nucleotide is composed of

Correct Answer
verified

Synthesis of an inducible enzyme requires

Correct Answer
verified

The transfer of DNA fragments from a dead cell to a live,competent recipient cell that results in a changed recipient cell is

Correct Answer
verified

When DNA is heated,the two strands will separate.

Correct Answer
verified

The expression of genetic traits is the

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Reverse transcriptase is used to make cDNA from an RNA template.

Correct Answer
verified

Okazaki fragments are attached to the growing end of the lagging strand by

Correct Answer
verified

The site where the old DNA strands separate and new DNA strands will be synthesized is called the

Correct Answer
verified

Which of the following is not a type of bacterial DNA recombination?

Correct Answer
verified

Correct Answer
verified

Exam 8: Microbial Genetics and Genetic Engineering

The various techniques by which scientists manipulate DNA in the lab are called

Correct AnswerverifiedShow Answer

A three base sequence on mRNA is called a(n)

Correct AnswerverifiedShow Answer

The enzymes that can proofread replicating DNA,detect incorrect bases,excise them,and correctly replace them are

Correct AnswerverifiedShow Answer

RNA molecules differ from DNA molecules because only RNA

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Three consecutive bases in the DNA of a gene represent the code for one

Correct AnswerverifiedShow Answer

DNA polymerase III

Correct AnswerverifiedShow Answer

The jumping of a gene from one location to another is done by

Correct AnswerverifiedShow Answer

Each nucleotide is composed of

Correct AnswerverifiedShow Answer

Synthesis of an inducible enzyme requires

Correct AnswerverifiedShow Answer

The transfer of DNA fragments from a dead cell to a live,competent recipient cell that results in a changed recipient cell is

Correct AnswerverifiedShow Answer

When DNA is heated,the two strands will separate.

Correct AnswerverifiedShow Answer

The expression of genetic traits is the

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Reverse transcriptase is used to make cDNA from an RNA template.

Correct AnswerverifiedShow Answer

Okazaki fragments are attached to the growing end of the lagging strand by

Correct AnswerverifiedShow Answer

The site where the old DNA strands separate and new DNA strands will be synthesized is called the

Correct AnswerverifiedShow Answer

Which of the following is not a type of bacterial DNA recombination?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

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