Filters
Question type

Study Flashcards

It is now possible to very quickly map the genome of an organism or virus.

A) True
B) False

Correct Answer

verifed

verified

You have made a speci?c DNA probe that will bind to a key sequence on the DNA of Neisseria gonorrhoeae, allowing your company to market a gonorrhea test kit that can be used to identify the bacterium in genital tract specimens. However, upon testing it out against a known Neisseria gonorrhoeae culture, you ?nd that it does not work. Which of the following is a possible explanation for this negative result?


A) You forgot to incubate the test at the 75oC temperature required for hybridization.
B) You forgot to label the probe sequence with a reporter molecule.
C) You forgot to add the mRNA to the DNA probe sample.
D) You forgot to digest the probe with restriction endonucleases.

E) A) and C)
F) B) and C)

Correct Answer

verifed

verified

Each of the following are features of a cloning host except ______.


A) quick generation time
B) minimal growth requirements
C) mapped genome
D) pathogenicity
E) transformable

F) B) and E)
G) All of the above

Correct Answer

verifed

verified

Your infant has been diagnosed with severe combined immunodeficiency disease (SCID) . Your doctor suggests which treatment as a possible cure for the disease?


A) Genome mapping
B) Reverse transcription
C) Gene therapy
D) Microarrays

E) A) and B)
F) B) and C)

Correct Answer

verifed

verified

The various techniques by which scientists manipulate DNA in the lab are termed ______.


A) genetic engineering
B) biotechnology
C) recombinant DNA
D) gel electrophoresis
E) gene probes

F) A) and B)
G) C) and E)

Correct Answer

verifed

verified

The process of introducing a needed, normal gene into human cells is called DNA mapping.

A) True
B) False

Correct Answer

verifed

verified

Transformation and transduction are methods used to introduce DNA into host cells.

A) True
B) False

Correct Answer

verifed

verified

Which of the following is not true of vectors?


A) They are easy to manipulate.
B) They contain a gene for drug resistance.
C) An origin of replication (ORI) is present.
D) They can detect RNA in cells.
E) They must accept DNA of desired size.

F) C) and D)
G) A) and C)

Correct Answer

verifed

verified

Which step in gene cloning can occur even more rapidly by PCR?


A) Target DNA removed from cells and isolated
B) Cloning host treated with calcium chloride and receives plasmid
C) Target DNA and plasmid treated with the same restriction endonuclease
D) Desired protein is produced by cloning host
E) Gene is amplified by multiplication of cloning host

F) None of the above
G) All of the above

Correct Answer

verifed

verified

Humans display how much DNA similarity with mice?


A) 50%
B) 60%
C) 70%
D) 80%
E) 90%

F) None of the above
G) A) and E)

Correct Answer

verifed

verified

The enzyme required to attach the sticky ends of DNA and used when splicing DNA fragments into other DNA is ______.


A) helicase
B) ligase
C) endonuclease
D) reverse transcriptase

E) A) and D)
F) All of the above

Correct Answer

verifed

verified

Why is an enzyme from a thermophilic bacterium used in PCR?


A) It is cheaper to obtain from live microorganisms than producing the enzyme in a lab.
B) DNA is replicated at a high temperature that denatures most proteins.
C) The enzyme makes DNA that is more similar to human DNA.
D) This thermohile's enzyme will synthesize DNA.

E) None of the above
F) A) and D)

Correct Answer

verifed

verified

The deliberate removal of genetic material from one organism and its subsequent transfer into the genome of another organism is a specific technique called ______.


A) genetic engineering
B) biotechnology
C) recombinant DNA technology
D) gel electrophoresis
E) gene probe technology

F) A) and E)
G) A) and B)

Correct Answer

verifed

verified

Any use of an organism's biochemical processes to create a product is referred to as ______.


A) genetic engineering
B) biotechnology
C) recombinant DNA
D) gel electrophoresis
E) gene probes

F) C) and D)
G) A) and E)

Correct Answer

verifed

verified

When micro RNA molecules malfunction, their effect is limited to the inhibition of protein production, which results in tumor growth.

A) True
B) False

Correct Answer

verifed

verified

Micro RNA therapy is based on the premise that ______.


A) miRNA molecules function to regulate gene expression, usually by inhibiting transcription; a non-functional miRNA can be replaced thereby reducing unwanted protein production
B) miRNA molecules function to regulate gene expression, usually by promoting translation; a non-functional miRNA can be repaired thereby reducing unwanted protein production
C) miRNA molecules function to regulate gene expression, usually by initiating transcription; an over-production of miRNA can be replaced thereby promoting necessary protein
Production
D) miRNA molecules function to regulate protein production, usually by inhibiting translation; a hyperactive miRNA can be replaced thereby reducing unwanted proteins

E) None of the above
F) B) and C)

Correct Answer

verifed

verified

It is possible to identify mRNA molecules using fluorescently labeled cDNA.

A) True
B) False

Correct Answer

verifed

verified

Which of the following is a list of the materials required for PCR?


A) Reverse transcriptase, Taq DNA polymerase, nucleotides
B) Primers, Taq RNA polymerase, nucleotides
C) Primers, Taq DNA polymerase, nucleotides
D) Reverse transcriptase, Taq RNA polymerase, nucleotides

E) None of the above
F) All of the above

Correct Answer

verifed

verified

Gene probes can be labeled for detection with reporter molecules such as _____.


A) enzymes
B) fluorescent dyes
C) radioisotopes
D) All of the choices can be used.

E) C) and D)
F) All of the above

Correct Answer

verifed

verified

Two different nucleic acids can _____ by annealing at their complementary sites.


A) ligate
B) covalently bond
C) form a peptide bond
D) hybridize

E) B) and C)
F) None of the above

Correct Answer

verifed

verified

Showing 61 - 80 of 82

Related Exams

Show Answer