Explain the structure of dna and difference between dna and rna ? class 11
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DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA instructions, or genetic code.
Difference in DNA and RNA
1) DNA often exists as a double stranded molecule and RNA as a single stranded molecule.
2) DNA contains thymine and RNAcontains uracil.
3) DNA is most often used to store genetic information, while RNA serves a host of functions.
4) The sugar found in DNA contains one less oxygen molecule than the sugar found in RNA.
Difference in DNA and RNA
1) DNA often exists as a double stranded molecule and RNA as a single stranded molecule.
2) DNA contains thymine and RNAcontains uracil.
3) DNA is most often used to store genetic information, while RNA serves a host of functions.
4) The sugar found in DNA contains one less oxygen molecule than the sugar found in RNA.
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