Exam 15: DNA Technology and Genomics

What are transgenic organisms? Explain the rationale behind using these organisms to produce some of the proteins needed for human use, instead of relying solely on proteins produced by genetically engineered E. coli.

Scientists study animal models in order to reveal the functions of human genes. This is an example of:

Cosmid cloning vectors accommodate much larger fragments of DNA than bacterial artificial chromosomes.

cDNA libraries contain:

What is meant by a genetic shotgun?

A genomic library consists of fragments of all DNA:

"Bt corn" are corn plants that contain a bacterial gene for the bacterial toxin, Bt. The production of this toxin kills insects that feed on the plant, thereby making the plants pest-resistant. This process is an example of:

PCR has many uses and advantages. What is one disadvantage of this technology?

The polymerase chain reaction was developed by:

Which of the following statements characterizes PCR?

Plasmid cloning vectors can:

A large number of copies of any DNA segment can be obtained by:

In the field of plant transgenics, the use of the bacterium Agrobacterium tumefaciens has proven useful because the bacterium:

Why is it unlikely that genetically engineered strains of bacteria would pose a threat to the environment?

A cDNA library is complementary to DNA and thus does not contain introns.