Which term describes the native double-stranded form of DNA?

Study for the DNA Structure, Replication, Transcription and Translation Test with flashcards and multiple choice questions. Each question offers hints and explanations. Prepare thoroughly and excel in your exam!

Multiple Choice

Which term describes the native double-stranded form of DNA?

Explanation:
The native double-stranded form of DNA is described by the term double helix. In cells, DNA comprises two long strands running antiparallel and wound into a helix, held together by complementary base pairing (A with T, C with G). This arrangement creates the stable, usual form known as the double helix (often the B form). When the strands separate, such as during replication or transcription, DNA exists as a single strand. Structures with three or four intertwined strands aren’t the normal cellular form, so they’re not described as the native DNA configuration.

The native double-stranded form of DNA is described by the term double helix. In cells, DNA comprises two long strands running antiparallel and wound into a helix, held together by complementary base pairing (A with T, C with G). This arrangement creates the stable, usual form known as the double helix (often the B form). When the strands separate, such as during replication or transcription, DNA exists as a single strand. Structures with three or four intertwined strands aren’t the normal cellular form, so they’re not described as the native DNA configuration.

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