what are the three major differences between dna and rna
DNA is usually double stranded and most cellular RNA is single stranded. 1)In DNA the pentose sugar is deoxyribose.Whereas in RNA the pentose sugar is ribose.2)In DNA the common organic bases are adenine,guanine,cytosine and thymine.Whereas in RNA the common organic bases are adenine,guanine,cytosine and uracil.NA is usually double stranded and most cellular RNA is single stranded. 1)In DNA the pentose sugar is deoxyribose.Whereas in RNA the pentose sugar is ribose.