Why Is an Enzyme from a Thermophilic Bacterium Used in PCR

question 39

Multiple Choice

Why is an enzyme from a thermophilic bacterium used in PCR?

• A)The enzyme makes DNA that is more similar to human DNA.
• B)It is cheaper to obtain from live microorganisms than producing the enzyme in a lab.
• C)This thermohile's enzyme will synthesize DNA.
• D)DNA is replicated at a high temperature that denatures most proteins.

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Definitions:

Antidepressant Medication

Drugs designed to improve symptoms of depressive disorders by altering chemical levels in the brain, particularly serotonin and norepinephrine.

Dopamine

A neurotransmitter that affects the ability to perceive pleasure, voluntary movement, and learning and memory; it is involved in Parkinson’s disease and appears to play a role in schizophrenia.

Norepinephrine

A neurotransmitter whose action is similar to that of the hormone epinephrine and that may play a role in depression.

Successive Approximations

In operant conditioning, a series of behaviors that gradually become more similar to a target behavior.