What is the "double helix" when referring to the structure of DNA?
A) two strands of linked nucleotides that are twisted around each other
B) two strands of linked nucleotides that fold back and forth like an accordion
C) four strands of linked nucleotides that are bound by phosphate groups
D) four strands of linked nucleotides that are bound by sugar groups
E) two chromosomes that twisted around each other
Correct Answer:
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