biotechnology review

Which biotechnology is used to make exact DNA copies of an organism?

• Gel electrophoresis
• Genetic Engineering
• Inbreeding
• Cloning

When cloning an organism, DNA is removed and placed into an empty

• virus
• sperm cell
• bacteria cell
• egg cell

Gene therapy is successful if the...

• DNA can be placed in a virus
• Virus carrying the gene can insert it into DNA
• New gene is expressed as a protein
• New gene is replicated in DNA

What biotechnology allows a researcher to make thousands of copies of a DNA strand?

• Cloning
• PCR
• gene therapy
• gel electrophoresis

In the United States, there has been relatively little experimentation involving the insertion of genes from other species into human DNA. What is one reason for the limitations of these experiments?

• The subunits of human DNA are different from the DNA subunits of other species.

• Inserting foreign DNA into human DNA would require using completely new techniques.

• Human DNA always promotes human survival, so there is no need to insert foreign genes into it.

• There are many ethical questions to be answered before inserting foreign genes into human DNA.

A farmer is considering the advantages of cloning a herd of cattle from a single cow. What is one advantage of a cloned herd?

• All cattle in the herd would have the most desired traits.

• All cattle in the herd would have more genetic variation.

• All cattle in the herd would have more resistance to diseases.

• All cattle in the herd would have much longer life spans.

Scientists have produced a genetically modified orange tree that is resistant to disease. Which of the following is the best example of a potential benefit to society that could result from this biotechnology?

• reduction in orange crops produced

• increase in orange crops produced

• increase in the cost of orange crop

• a change in the distribution of insects that pollinate orange flowers

This is the practice of inserting the DNA of another species into an organism's DNA so that the organism gains a new trait.

• Cloning

• Gel Electrophoresis

• Genetic Engineering

• DNA Fingerprinting

This is the practice of cutting DNA and separating it by the size of the pieces

• Cloning

• Gel Electrophoresis

• Genetic Engineering

• DNA Fingerprinting

Which kitten is most likely the offspring of this cat?

• 1

• 2

• 3

• 4