Bio - Unit 8 Biotechnology Posttest

A new variety of cotton has been developed that uses a gene from a certain bacteria to produce a protein that is specifically toxic to certain insects, but not animals or humans. Which process created this new variety of cotton?

• cloning

• DNA fingerprinting

• stem cell differentiation

• bacterial transformation

What is the term for the technique performed by using gel electrophoresis to identify an individual using a DNA sample?

• cloning

• gene therapy

• transformation

• DNA fingerprinting

Which best describes recombinant DNA?

• DNA that has been deactivated by enzymes

• DNA found in organelles other than the nucleus

• inserted genes from one organism into another to direct it to produce

  a protein

• genes developed when an egg nucleus and a sperm nucleus fuse to

  form a zygote

Which has most recently helped in the development of treatments for people with cystic fibrosis?

• stem cell research

• gel electrophoresis

• human genome project

• development of new vaccines

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What is the function of the plasmid when creating recombinant DNA?

• to remove the nucleus from an egg cell

• to introduce foreign DNA into bacteria

• to cut DNA at a specific location

• to activate restriction enzymes

A crime was committed and investigators found several strands of hair at the crime scene. Which will most likely help the investigators in solving the crime?

• testing the strands of hair for drugs

• testing the strands of hair for proteins

• doing DNA analysis on the strands of hair

• comparing the color of hair found to that of the victim

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Which has the Human Genome Project most improved in the field of medicine?

• the ability to generate vaccines

• the diagnosis and treatment of disease

• the elimination of all genetic disorders

• the ability to detect environmental pollution

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After the transformation of bacteria, how might one determine success or verify that the bacteria took up the desired gene into their own genome?

• All the bacteria have survived.

• All of the bacteria contain a plasmid.

• None of the bacteria are expressing the desired gene.

• Some of the bacteria are expressing the desired gene.

Why is the process of using a DNA fingerprint an effective process for identifying various organisms?

• It is likely that DNA will be the same in a large number of organisms,

  making it easy to lump the individual into a large group.

• DNA can be interchanged with other factors such as skin color, hair

  length, height and weight of an organism for classification purposes.

• DNA samples are difficult to obtain and therefore are reserved for

  classifying very specific organisms.

• It is likely that DNA from one organism is unique to that individual,

  making identification easy.

How have genetically modified organisms (GMOs) used in agriculture helped the environment?

• reduced use of natural resources

• reduced use of harmful pesticides

• reduced genetic diversity in nature

• reduced consumption of water by livestock

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