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In Sanger dideoxy DNA sequencing,DNA polymerase I is used to add nucleotides to the ___ end of the growing polynucleotide chain.


A) sticky
B) blunt
C) 3'
D) 5'
E) dideoxy nucleotide containing

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What is the name of the molecule shown in the diagram? What is the name of the molecule shown in the diagram?    A) adenosine B) cytosine C) cytidine D) cytidine monophosphate E) uridine


A) adenosine
B) cytosine
C) cytidine
D) cytidine monophosphate
E) uridine

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DNA sequencing by the chain-termination method utilizes DNA polymerase I to make a complementary copy of the target or template DNA molecule.A reaction with a 20 bp template and dideoxyadenosine nucleotides as terminators results in the production of a 5 bp fragment.Based on this result,we can conclude that the template contains


A) a cytosine at position 5.
B) a thymine at position 5.
C) a cytosine at position 16.
D) a thymine at position 16.
E) a uracil at position 5.

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D

Which of the following DNA sequences is considered palindromic?


A) AAGCTT
B) GAACTT
C) GAACAA
D) AAGCAA
E) AAGTTC

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In order to perform PCR,which of the following describes the reagents that must be included in the reaction mixture?


A) DNA fragment,primers flanking the region of interest,dNTPs,DNA polymerase
B) DNA fragment,primers flanking the region of interest,dNTPs,ddNTPS,DNA polymerase
C) DNA fragment,one primer,dNTPs,DNA polymerase,DNA ligase
D) DNA fragment,primers flanking the region of interest,dNTPs,DNA Ligase
E) none of the above

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DNA sequencing using the Sanger method requires


A) template,primer,DNA polymerase,mRNA,dNTPs,ddNTPs.
B) template,primer,DNA polymerase,dNTPs,ddNTPs.
C) template,primer,DNA polymerase,rRNA,dNTPs,ddNTPs.
D) template,primer,DNA polymerase,mRNA,dNTPs.
E) none of the above

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The molecule shown in the diagram is a The molecule shown in the diagram is a    A) purine. B) dinucleotide. C) nucleoside. D) nucleotide. E) none of the above


A) purine.
B) dinucleotide.
C) nucleoside.
D) nucleotide.
E) none of the above

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Matching -After hybridization,the fragment of interest can be detected by ______.


A) diploid
B) phosphodiester
C) probe
D) pyrimidine
E) introns
F) cloning
G) transformed
H) exons
I) ampicillin
J) autoradiography
K) chain-terminator
L) purine
M) ester

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J

Which of the restriction enzymes listed in the table below produces blunt-end fragments? Which of the restriction enzymes listed in the table below produces blunt-end fragments?   A) AluI B) BamHI C) BglII D) EcoRI E) HindIII


A) AluI
B) BamHI
C) BglII
D) EcoRI
E) HindIII

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Matching -The method that Sanger developed for DNA sequencing using dideoxy nucleotides is called the ______ method.


A) diploid
B) phosphodiester
C) probe
D) pyrimidine
E) introns
F) cloning
G) transformed
H) exons
I) ampicillin
J) autoradiography
K) chain-terminator
L) purine
M) ester

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Matching -Organisms composed of cells with two sets of chromosomes are called ______ organisms.


A) diploid
B) phosphodiester
C) probe
D) pyrimidine
E) introns
F) cloning
G) transformed
H) exons
I) ampicillin
J) autoradiography
K) chain-terminator
L) purine
M) ester

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Matching -A small fragment of labeled DNA or RNA used in a hybridization experiment is called a ______.


A) diploid
B) phosphodiester
C) probe
D) pyrimidine
E) introns
F) cloning
G) transformed
H) exons
I) ampicillin
J) autoradiography
K) chain-terminator
L) purine
M) ester

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Small circular DNA molecules used to carry foreign DNA fragments are called ________.


A) mRNAs
B) bacteriophage
C) clones
D) plasmids
E) nucleotides

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In living organisms,genetic information is most often stored in the form of


A) ribonucleic acid.
B) deoxyribonucleic acid.
C) proteins.
D) enzymes.
E) deoxynucleotides.

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B

DNA polymerase from Thermus aquaticus is used in PCR because


A) it is a soluble protein.
B) the genes from Thermus aquaticus are readily distinguished from those of 'normal' organisms.
C) the enzyme is readily deactivated by heat,effectively halting the reaction.
D) it is stable at high temperatures.
E) it is not infectious.

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In 1944 Avery,MacLeod,and McCarty did experiments with Diplococcus pneumoniae that proved that


A) DNA is double stranded.
B) DNA contains deoxyribose.
C) DNA can be transcribed into RNA.
D) DNA can permanently transform a non-pathogenic strain into a pathogenic strain.
E) The structure of DNA provides a mechanism for reliable replication.

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This is the structure of adenine. This is the structure of adenine.   a.Is adenine a purine or a pyrimidine? b.Which base does adenine base-pair (H-bond)with in DNA? c.What is the name of the molecule that is composed of adenine linked to the C1' of ribose? d.Indicate on the drawing through which atom adenine is connected to ribose or deoxyribose. e.Indicate on the drawing which groups on adenine are involved in base-pairing or H-bonding with its complementary base. a.Is adenine a purine or a pyrimidine? b.Which base does adenine base-pair (H-bond)with in DNA? c.What is the name of the molecule that is composed of adenine linked to the C1' of ribose? d.Indicate on the drawing through which atom adenine is connected to ribose or deoxyribose. e.Indicate on the drawing which groups on adenine are involved in base-pairing or H-bonding with its complementary base.

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a.adenine,guanine,an...

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Nucleotides in a DNA molecule are linked together through


A) glycosidic bonds.
B) amide linkages.
C) hydrogen bonds.
D) phosphoanhydride bonds.
E) phosphodiester bonds.

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Which of the following molecules does not contain an energy rich phosphoanhydride bond?


A) ADP
B) GDP
C) AMP
D) CDP
E) all of the above

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Which of the enzymes listed in the table below produce identical sticky ends? Which of the enzymes listed in the table below produce identical sticky ends?   A) AluI and HindIII B) AluI and BamHI C) HindIII and EcoRI D) HindIII and BglII E) BamHI and BglII


A) AluI and HindIII
B) AluI and BamHI
C) HindIII and EcoRI
D) HindIII and BglII
E) BamHI and BglII

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