Which of the Following Statements Regarding Vectors Is FALSE

question 13

Multiple Choice

Which of the following statements regarding vectors is FALSE?

• A) Vectors are usually autonomously replicating DNA molecules.
• B) A useful vector contains multiple restriction sites for insertion of DNA.
• C) Vectors are generally over 100,000 base pairs in size.
• D) Cloning vectors frequently contain sequences necessary for expression of inserted sequences.
• E) Cloning vectors include a "marker" to facilitate identification of cells containing them.

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Definitions:

Acetylcholine

A neurotransmitter important for learning and memory, as well as muscle contraction, involved in many functions across the nervous system.

Blocks Receptors

Refers to substances or mechanisms that inhibit the action of neurotransmitters by occupying their receptor sites and preventing activation.

Agonist

A chemical or drug that binds to receptors in the brain and causes a reaction or response similar to a naturally occurring substance.

Antagonist

A molecule that binds to a receptor but does not activate it, thereby blocking action of agonist molecules or inhibiting the function of an enzyme.