HeLa Cells Display a Variety of Abnormalities

question 40

Multiple Choice

HeLa cells display a variety of abnormalities.Which is most associated with their ability to divide repeatedly?

• A) The cell line shows evidence of having been infected with HPV (human papillomavirus).
• B) HeLa cells express the telomerase gene and are able to reconstruct the ends of their chromosomes after each round of cell division.
• C) The cell line is quadraploid (having four sets of chromosomes) rather than diploid (having two sets of chromosomes) like all normal somatic cells.
• D) The HeLa cell line was exposed to cosmic radiation prior to developing its unusual reproductive capabilities.

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Definitions:

Knowledge Workers

Individuals whose primary job involves the creation, manipulation, and management of information.

Downsizing

Planned elimination of jobs

Outsourcing

The practice of hiring external firms to perform tasks, handle operations, or provide services that are either difficult to manage or outside the company's expertise.

Reengineering

The fundamental rethinking and radical redesign of business processes to achieve dramatic improvements in critical measures of performance.