DNA Replication Quiz

The two strands of DNA run in opposite directions, which means they are ____.

• Parallel

• Antiparallel

• Perpendicular

• Identical

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The enzyme that moves along each strand, adding new nucleotides that match the original strand is ____.

• A) Helicase

• B) DNA polymerase

• C) Ligase

• D) Primase

Understanding the process of DNA replication is crucial for developing new treatments for conditions such as ______.

• allergies

• cancer

• colds

• headaches

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DNA polymerase acts like a ______, adding the correct nucleotides to the new DNA strand.

• zipper

• builder

• cutter

• painter

The lagging strand is synthesized in a ______ fashion.

• continuous

• piecemeal

• random

• linear

DNA polymerase acts like a ______, ensuring that the new strand is a perfect copy of the original.

• zipper

• builder

• cutter

• painter

The 'origins of replication' are crucial because they are the points where ____.

• A. DNA polymerase binds

• B. DNA strands are joined

• C. DNA is proofread

• D. DNA is unwound and separated

Which enzyme is responsible for unwinding the DNA molecule during replication?

• DNA polymerase

• Helicase

• Ligase

• Primase

What is the function of helicase in DNA replication?

• It synthesizes new DNA strands.

• It unwinds the DNA double helix.

• It joins Okazaki fragments.

• It proofreads the DNA.

Why is DNA replication essential for the growth and repair of organisms?

• It creates new cells

• It repairs damaged DNA

• It provides energy

• It synthesizes proteins.

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