Polymerase Chain Reaction (PCR) Is Useful for Amplifying a Small

question 32

Multiple Choice

Polymerase chain reaction (PCR) is useful for amplifying a small piece of DNA but is not a good technique for cloning genes because

• A) DNA ligase cannot be used in PCRs.
• B) PCRs do not generate palindromic sequences.
• C) copies of DNA produced by PCRs lack the regulatory genes and proteins required to activate genes.
• D) PCRs only generate primary transcripts that require excision of introns.
• E) ribosomes are required to produce active genes.

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Definitions:

Lockjaw

A condition, often associated with tetanus, characterized by stiffness and spasm of the jaw muscles.

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A chronic infectious disease caused by Mycobacterium leprae, affecting the skin, nerves, and respiratory tract.

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Biological sex characterized by XY chromosomes, typically associated with specific physical and reproductive features.

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The characteristic of not allowing light to pass through; lacking transparency or translucency.