Is the DNA Double Helix Parallel or Antiparallel, and What

question 46

Multiple Choice

Is the DNA double helix parallel or antiparallel, and what does this mean?

• A) It is parallel, meaning that the two strands both run alongside one another.
• B) It is parallel, meaning that the base pairs are parallel.
• C) It is parallel, meaning that the 5  end of one strand is positioned opposite the 5  end of the other strand.
• D) It is antiparallel, meaning that the 5  end of one strand is positioned opposite the 3  end of the other strand.
• E) It is antiparallel, meaning that the bases are perpendicular to the backbone.

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