RNA AND DNA! :] help?

RNA stands for ribonucleic acid, where as DNA stands for deoxyribonucleic acid. The "ribo" refers to the ribose sugar molecule that is found in each nucleotide, the "deoxy" refers to the fact that DNA is missing an oxygen molecule in it's ribose. RNA is singles stranded whereas DNA is double stranded. DNA is used as the genetic material in nearly all organisms (some viruses use RNA as their genetic material), the genetic material is what is replicated and ped on in cell multiplication (mitosis) and ual reproduction. RNA is used for several purposes. A section of genetic code found in DNA is transcribed into a strand of RNA which is translated into a polypeptide (chain of amino acids) with the help of tRNA (transfer RNA which transports amino acids) and rRNA (ribosomal RNA which makes of a subunit of the ribosome).