A Danger in Using E

question 9

Multiple Choice

A danger in using E. coli in cloning is that

• A)E. coli could cause disease.
• B) the human cells may reject the insertion.
• C) the exons may invert the introns.
• D) the outer membrane is poisonous to humans.

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Definitions:

Coal

A combustible black or brownish-black sedimentary rock formed from plant remains, primarily consisting of carbon and used as a fossil fuel.

Granitic Intrusion

The forced entry of magma composed mainly of quartz and feldspar into surrounding rock, cooling and solidifying to form granite.

Salt Dome

A type of geological structure formed when a thick bed of evaporite minerals (mainly salt) found at depth intrudes vertically into surrounding rock layers.

Volcanic Conduit

A pipe-like structure through which magma moves from a magma chamber to the Earth's surface.