Plasmids Are

question 4

Multiple Choice

Plasmids are

• A) circular structures present in bacteria that contain genes encoding proteins and DNA and have the capacity to self-replicate and portion into daughter cells during cellular division.
• B) DNA elements that encode transposition and excision function and can transpose from one place on the chromosome to another.
• C) genetic elements capable of integrating resistance genes (cassettes) by an integron-encoded, site-specific recombinase.
• D) DNA elements found in bacteria that carry genes only for the enzymes needed to promote their own transposition.

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Definitions:

Potential Energy

The energy possessed by an object due to its position, condition, or structure, such as a rock at the top of a hill or water held behind a dam.

Energy Quality

Energy Quality refers to the ability of a form of energy to perform work; higher quality energies are more easily used to perform work effectively.

Electricity

The set of physical phenomena associated with the presence and motion of electric charge, used as a form of energy.

Ionizing Radiation

Radiation with enough energy to remove tightly bound electrons from atoms, thus creating ions, and can lead to chemical changes and damage biological tissues.