There are many similarities between dna and rna. what statements support this idea

This is supported by the following statements:

- Both DNA and RNA nucleotides have the nitrogenous bases adenine, cytosine, and guanine.

- Both DNA and RNA are involved in the "Central Dogma" of biology. 

- Both DNA and RNA contain monosaccharide sugars on their respective nucleotides. 

- Both DNA and RNA can carry messages, act as enzymes and are part of ribosomes.

- Both DNA and RNA cover phosphate groups on their respective nucleotides.