Question

which of the following best describes how dna and rna are similar?
○ they both have adenine and thymine
○ they both have a double helix
○ they both have cytosine and guanine
○ they are both composed of 5 different nucleotides

Explanation:

DNA and RNA are nucleic - acids. DNA has the bases Adenine (A), Thymine (T), Cytosine (C), and Guanine (G), while RNA has Adenine (A), Uracil (U), Cytosine (C), and Guanine (G). So, they both have Cytosine and Guanine. DNA is usually double - helix, while RNA is usually single - stranded. DNA and RNA are composed of 4 different nucleotides each.

Answer:

They both have Cytosine and Guanine