Monday, December 17, 2012

Comparison between DNA and RNA




DNA
RNA
1.     DNA is double stranded
Single stranded
2.     It contains a pentose sugar called deoxyribose
The pentose sugar present is ribose
3.     Nitrogen bases are: Purines (adenine and guanine) and pyrimidines (cytosine and thymine)
Nitrogen bases are: Purines (adenine and guanine) and pyrimidines (cytosine and uracil)
4.     Thymine base is present but Uracil base is absent
Uracil is present but thymine is absent
5.     There are 4 types of nucleotides: deoxyadenosine monophosphate, deoxyguanosine monophosphate, deoxycytidine monophosphate and thymidine monophosphate
There are 4 types of nucleotides: adenosine monophosphate, guanosine monophosphate, cytidine monophosphate and uridine monophosphate
6.     It is a genetic material in organisms other than RNA viruses.
It is a genetic material in RNA viruses.
It is a carrier of genetic information and it plays a very important role in protein synthesis.
7.     It occurs in chromosomes, nucleoplasm, mitochondria, chloroplasts etc
It mostly occurs in nucleolus, nucleoplasm and cytoplasm.
8.     More stable
Less stable
9.     Less mutable
More mutable

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