DNA Structure

 

DNA = deoxyribonucleic acid

            Polymer of nucleotides:

                        Sugar -- deoxyribose

                        Phosphate

                        Nitrogenous base

                                    A, T, G, C

            Complementary base pairing

 

DNA replication

 

RNA = ribonucleic acid

            Polymer of nucleotides:

                        Sugar -- ribose

                        Phosphate

                        Nitrogenous base

                                    A, U, G, C

            Three forms:

                        mRNA

                        rRNA

                        tRNA

 

Genetic code

            Triplet of bases (= codon) code for amino acid