please explain me

Asked by  | 10th Oct, 2009, 11:03: AM

Expert Answer:

  DNA RNA
1 Double-stranded Single stranded
2 Pentose sugar is deoxyribose Pentose sugar is ribose
3 The nitrogen bases in DNA are adenine, guanine, cytosine and thymine The nitrogen bases in DNA are adenine, guanine, cytosine and uracil
4 DNA is longer, consisting of thousands of nucleotides. RNA is comparatively short, made up of only a few hundreds of nucleotides.
5 It is a genetic material in all cells. It is a genetic material in only some viruses.
6 DNA is only of one type. RNA is of 3 types i.e. mRNA, rRNA and tRNA.

Answered by  | 14th Oct, 2009, 10:32: AM

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