Deoxyribonucleic acid is the polynucleotide chain that is the carrier of the heritable traits from the parent to the offspring. The shape of DNA is a double helix.
<h3>What is the structure of the DNA?</h3>
DNA or Deoxyribonucleic acid is the molecule that carries the genetic data for the expression of the proteins that code for the growth, development, reproduction and functioning of the cell.
DNA consists of two strands of a polynucleotide chain wrapped around each other in the shape of the double helix and contains deoxyribose sugar and phosphate as their backbone.
Therefore, the correct blank is option D. <u>double helix</u>.
Learn more about double-helical DNA here:
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