Why Is Heating a First Step in PCR Amplification of Extracted

question 111

Multiple Choice

Why is heating a first step in PCR amplification of extracted DNA?

• A) The enzyme DNA polymerase works at a higher temperature.
• B) The nucleotides bind together at high heat.
• C) It is necessary for DNA strands to anneal to each other.
• D) It permits hydrogen bonds between DNA strands to dissociate.
• E) It is required for primers to bind permanently to the DNA.

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Definitions:

Sensor Afferents

Nerves that carry sensory signals from the periphery of the body towards the central nervous system.

A-Beta Fibers

Large sensory fibers involved in rapidly transmitting sensation and possibly in inhibiting the transmission of pain.

Myelinated

Refers to nerve fibers that are covered in a protective, fatty sheath called myelin, which facilitates faster electrical impulse transmission.

Morphine

A powerful opiate analgesic drug derived from the opium poppy used to relieve severe pain.