DNA's backbone is based on a repeated pattern of a sugar and phosphate group. The Genetic parts of the DNA are found in the "Steps" of the structure. (nitrogen bases) The Bases are on the inside and the backbone is on the outside.(1)
It also has two strands of nucleotides that form a spiral stair case looking figure. Each nucleotide contains three parts; Phosphate group, sugar molecule and one of four bases. Those four bases are admine, guanine, cytosine and thymine. The bases link up using hydrogen bonds; Admine to Thymine and Cytosine to Guanine. The pairs never change but the pattern can very depending on the species.(2)
Structure of tRNA
Transfer RNA brings out the amino acids to a growing polypeptide chain at the ribosomal site of protein synthesis during translation. All tRNA's have a similiar sequences of 73-93 nucleotides. The image of tRNA is in a compact "L" shape. (4) Transfer RNA has three structures; A primary, secondary and a tertiary. Each one contains a specific anticodon triplet sequence that can be a base pair to one or more codons for an amino acid. (3)
Structure of mRNA
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