A Key Feature of Regulatory Systems Involving Deletion of a Gene

question 88

Multiple Choice

A key feature of regulatory systems involving deletion of a gene is:

• A) the DNA deletion event must be passed to progeny cells
• B) the cell can modulate the level of expression of this gene (one cell can express the gene at different levels) in response to different growth conditions
• C) the deletion event can occur in any cell type at any time
• D) the DNA deletion event must not be passed to progeny or germ?line cells
• E) the sigma factor of RNA polymerase is altered

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Definitions:

Dutch West India Company

A chartered company of Dutch merchants in the 17th century that established and directed trade throughout the Atlantic, including the slave trade and the settlement of New Netherland, now New York.

Powhatan

The leader of the Powhatan Confederacy, a network of tribal nations in what is now Virginia, who played a significant role in the early interactions between Native American peoples and English settlers in the 17th century.

St. Augustine

St. Augustine is a historic city in Florida, known for being the oldest continuously inhabited European-established settlement in the continental United States.

Massachusetts Bay Colony

An early English settlement in North America founded in 1630 by Puritans seeking religious freedom, it played a significant role in the development of New England.