RNA

General
	ribonucleic acid
	puts the code in DNA into a protein
	made in the nucleolus
Structure
	single stranded polymer of nucleotides
	nucleotide structure in RNA
		phosphate
		pentose sugar - ribose
		nitrogen base
			purines
				adenine
				guanine
			pyrimidines
				uracil
				cytosine
	Base pair rule
		A-U
		C-G
Kinds of RNA
	messenger RNA
		mRNA
		transcribes the genetic code in DNA
		takes it to the ribosome
	ribosomal RNA
		rRNA
		makes up the ribosomes
		provides site to put amino acids together forming polypeptide chains
		produces protein that turns the tRNA off
	transfer RNA
		tRNA
		found in cytoplasm
		bonds to amino acids
		brings them to the ribosomes

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