Question

Which statement most accurately compares and contrasts the structures of DNA and RNA?

A. Both DNA and RNA have 4 nucleotide bases. Three of the bases are the same but the fourth base is thymine in DNA and uracil n RNA.
B. Both DNA and RNA have the same 4 nucleotide bases However, the nucleotides bone differently in the DNA when compared to RNA.
C. Both DNA and RNA have 6 nucleotide bases. However, the shape of DNA is a triple helix and the shape of RNA is a double helix.
D. Both DNA and RNA have a double helix structure. However, DNA contains 6 nucleotide bases and RNA contains 4 nucleotide bases.

Answer 1

DNA and RNA differ in their structure and bases. RNA is single-stranded and contains uracil as a base, while DNA is double-stranded and contains thymine as a base.

Step-by-step explanation:

DNA, or deoxyribonucleic acid, is a molecule that carries most of the genetic instructions used in the development, functioning, and reproduction of all known living organisms and many viruses. DNA is a type of nucleic acid, which is one of the four major classes of macromolecules essential for all known forms of life (alongside proteins, lipids, and carbohydrates).

RNA is single-stranded, while DNA is double-stranded. RNA contains the base uracil, while DNA contains the base thymine. Both RNA and DNA contain three of the same bases: adenine, guanine, and cytosine.