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Semester I Exam Review 2014

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Chapters 1-4. Semester I Exam Review 2014. Which is the sugar component of a DNA nucleotide? . A. Deoxyribose B. Adenine C. Glucose D. Phosphate. A. Deoxyribose. Which substances are components of a DNA nucleotide?. A. Ribose, phosphate, and uracil

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which is the sugar component of a dna nucleotide
Which is the sugar component of a DNA nucleotide?
  • A. Deoxyribose
  • B. Adenine
  • C. Glucose
  • D. Phosphate
which substances are components of a dna nucleotide
Which substances are components of a DNA nucleotide?
  • A. Ribose, phosphate, and uracil
  • B. Phosphate, ribose, and adenine
  • C. Phosphate, deoxyribose, and uracil
  • D. Thymine, deoxyribose, and phosphate
the individuality of an organism is determined by the organism s
The individuality of an organism is determined by the organism’s
  • Nitrogenous bases
  • Transfer RNA molecules
  • DNA nucleotide sequence
  • Amino acids
which two bases are present in equal amounts in a double stranded dna molecule
Which two bases are present in equal amounts in a double-stranded DNA molecule?
  • Cytosine and thymine
  • Adenine and thymine
  • Adenine and uracil
  • Cytosine and uracil
during dna replication which enzyme is responsible for unzipping the dna molecule
During DNA replication, which enzyme is responsible for “unzipping” the DNA molecule?
  • DNA polymerase
  • DNA restriction enzymes
  • DNA ligase
  • DNA helicase
slide12
A human DNA segment was inserted into a bacterial cell and became incorporated into the bacterial DNA. This technique is an example of
  • Cloning
  • Genetic counseling
  • Artificial selection
  • Genetic engineering
which technique is used to alter bacteria in such a way that they produce human insulin
Which technique is used to alter bacteria in such a way that they produce human insulin?
  • Hydrolysis
  • DNA replication
  • Recombinant DNA formation
  • Genetic screening
the insertion of a human dna fragment into a bacterial cell might make it possible for
The insertion of a human DNA fragment into a bacterial cell might make it possible for
  • The bacterial cell to produce a human protein
  • The cloning of the human that donated that DNA fragment
  • Humans to become immune to an infection by this type of bacteria
  • The cloning of this type of bacteria
slide18
Many diabetics are now using insulin that was made by certain bacteria. The ability of these bacteria to produce insulin was most likely the result of
  • Using radiation to trigger mutations
  • Genetic mapping of bacterial DNA to activate the gene for insulin production
  • Deleting many DNA segments from bacterial DNA
  • Inserting a portion of human DNA into the ring-shaped DNA of bacteria
slide20
A small amount of DNA was taken from a fossil of a mammoth found frozen in glacial ice. Genetic technology can be used to produce a large quantity of identical DNA from this mammoth’s DNA. In this technology, the original DNA sample is used toa. stimulate differentiation in other mammoth cells.B. Act as a template for repeated replicationc. Provide fragments to replace certain human body chemicals.D. Trigger mitosis to obtain new base sequences
scientists have cloned sheep but not a human the best explanation for this situation is that
Scientists have cloned sheep, but not a human. The best explanation for this situation is that
  • There are many ethical problems involved in cloning humans
  • The technology to clone humans has not been explored
  • Human reproduction is very different from that of other mammals
  • Cloning humans would take too long.
what is the genetically engineered curdling agent in the cheese lab
What is the genetically engineered curdling agent in the cheese lab?
  • Rennen
  • Chymosin
  • Buttermilk
  • Whole Milk
why did scientists produce recombinant rennin
Why did scientists produce recombinant rennin?
  • 1. Produce large quantities.
  • 2. Cheaper.
what color does iodine turn in the presence of starch
What color does iodine turn in the presence of starch?
  • Rusty yellow.
  • Clear
  • Purple/blue
  • Yellow/orange
slide29
Tomato plants in a garden are not growing well. The gardener hypothesizes that the soil is too acidic. To test this hypothesis accurately, the gardener could
  • Change the pH of the soil
  • Plant seeds of a different kind of plant
  • Move the tomato plants to an area with less sunlight
  • Reduce the amount of water available to the plant
slide31
To locate a specimen on a prepared slide, a student should begin with the low-power objective rather that the high-power objective because the
  • Field of vision is smaller under low power than under high power
  • Field of vision is larger under low power than under high power
  • Specimen does not need to be stained for observation under low power but must be stained for observation under high power
  • Portion of the specimen that can be observed under low power is less than the portion that can be observed under high power.
to measure 50 ml which tool would be the most accurate
To measure 50 mL, which tool would be the most accurate?
  • Micropipet
  • Pipet
  • graduated cylinder
  • Balance
  • Microcentrifuge tube
5 kg is equal to g
5 kg is equal to _______g
  • 500
  • 5000
  • 0.005
  • 0.0005
which group of measurements contains only metric units
Which group of measurements contains only metric units?
  • 5 in, 3 kg, 40 oz
  • 5 mm, 3 g, 40 lb
  • 5 in, 3 lb, 40 mL
  • 5 mm, 3 g, 40 mL
proteins are synthesized from less complex organic compounds known as
Proteins are synthesized from less complex organic compounds known as:
  • Carbons
  • Starches
  • Amino acids
  • enzymes
in what organelle is dna found
In what organelle is DNA found?
  • Cytoplasm
  • Nucleus
  • Endoplasmic reticulum
  • Lysosome
which enzyme pastes rdna fragments together
Which enzyme “pastes” rDNA fragments together?
  • Transformation enzyme
  • Restriction enzyme
  • DNA ligase
  • DNA polymerase
  • Nuclease enzyme
a product that has entered the product pipeline
A product that has entered the product pipeline
  • Is ready for clinical testing to begin.
  • Is being produced on a large scale by the manufacturing department
  • Has been determined safe and effective
  • Needs to be reviewed regularly with a comprehensive product development plan.
biotechnology research labs are commonly found at all of the following facilities except
Biotechnology research labs are commonly found at all of the following facilities except
  • Universities
  • Medical clinics
  • Companies
  • Government agencies
the primary goal in a biotechnology company is to
The primary goal in a biotechnology company is to
  • Engage in “pure science”
  • Cure all the diseases of the world
  • Publish results in scientific journals
  • Provide a product of service that is useful to society and results in earnings
what is meant by cell specialization
What is meant by cell specialization?
  • Different cell lines (CHO & HeLa cells) are more suited to producing certain kinds of recombinant proteins.
  • Prokaryotic cells specialize in certain tasks and can therefore grow more rapidly than eukaryotic cells.
  • There is great cell variety in multicellular organisms in which different kinds of cells have different jobs to do.
  • All of the above
slide54
There is great cell variety in multicellular organisms in which different kinds of cells have different jobs to do
as a solution becomes dilute
As a solution becomes dilute
  • The proportion of solute to solvent increases
  • The proportion of solvent to solute increases
  • The normality of the solution shifts
  • Re-ionization begins to occur
nucleotides are bonded to each other on a nucleic acid by
Nucleotides are bonded to each other on a nucleic acid by
  • Hydrogen bonds
  • Antiparallel bonds
  • Peptide bonds
  • Phosphodiester bonds
slide61
A circular plasmid was cut with a restriction enzyme & three bands were visualized after electrophoresis. How many cuts were made in the plasmid?
  • 1
  • 2
  • 3
  • 4
which agarose concentration would work best for separating very large molecules
Which agarose concentration would work best for separating very large molecules?
  • 3%
  • 2%
  • 0.8%
  • All choices would work
during a dna extraction the purpose of smashing the fruit was to
During a DNA extraction, the purpose of smashing the fruit was to
  • Break the phosphodiester bonds between nucleotides
  • Break open the nuclear membrane
  • Break apart the cellulose in the plant cells.
  • Break apart the cell membrane.
the types of cells commonly used in biotechnology are
The types of cells commonly used in biotechnology are
  • Bacteria
  • Yeast
  • Chinese hamster ovary cells
  • All of the above
slide71
After an enzyme cuts DNA into smaller pieces, this enzyme is responsible for gluing the new DNA pieces together
  • DNA ligase
  • DNA helicase
  • DNA emporase
  • Restriction enzymes
what is the total magnification of an object if you are using 10x oculars and 4x objective
What is the total magnification of an object if you are using 10X oculars and 4X objective?
  • 14X
  • 400X
  • 40X
  • 4X
in gel electrophoresis what makes the dna migrate through the gel during electrophoresis
In gel electrophoresis, what makes the DNA migrate through the gel during electrophoresis?
  • Water
  • Gravity
  • Salt
  • Electricity
in pcr the purpose for the heating cycle is to
In PCR, the purpose for the heating cycle is to
  • Kill the bacteria.
  • Make the DNA glow.
  • Separate the DNA strands.
  • Move the DNA in the gel.
antiparallel with regard to dna means that
Antiparallel, with regard to DNA means that:
  • The strands cross each other
  • The strands run parallel to each other but run in opposite directions
  • The strands run the same directions and are parallel
  • Strands run at right angles to each other
ecori is an example of which type of enzyme
EcoRI is an example of which type of enzyme?
  • Restriction endonuclease
  • RNA polymerase
  • DNA polymerase
  • DNA ligase
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