The phrase 'DNA helix' is synonymous with many scientific and technical terms. Some of the most common alternatives for DNA helix include double helix, nucleic acid helix, genetic helix, DNA molecule, and DNA strand, etc. Additionally, the phrase DNA double helix is frequently used to refer to the structure of DNA, and it's scientific representation. While these synonyms have subtle variations, the inherent concept underlying them all is the same. They all refer to the fundamental building blocks of life, which encode all the instructions for the growth and development of living organisms. Overall, these synonyms can help provide a better understanding of DNA and its intricate structure.