RNA

• a nucleic acid that transfers DNA information from nucleus to cytoplasm
• made up of a ribose sugar, organic base and a phosphate group
• the organic bases in RNA is adenine, uracil, guanine and cytosine
• mRNA are messenger RNA while tRNA are transfer RNA
• mRNA are long single polynucleotides that contain sequence of mRNA nucleotide bases from nucleus to ribosome
• sequence of bases on DNA determines the sequence of amino acids in a polypeptide
• mRNA contains correct triplet sequence to code for amino acids in a polypeptide
• tRNA carries specific amino acids from cytoplasm to ribosome
• tRNA is a single polynucleotide but folded
• tRNA has a clover leaf structure
• the structure of tRNA contains an attachment site and anticodon
• anticodon is 3 exposed bases
• RNA is unstable while DNA is stable
• DNA has a deoxyribose sugar while RNA has a ribose sugar