DNA Structure

deoxyribose

a five-carbon sugar that is a component of DNA nucleotides

ribose

a five-carbon sugar present in RNA

nitrogenous base

carbon ring structure found in DNA or RNA that contains one or more atoms of nitrogen; includes adenine, guanine, cytosine, thymine and (uracil RNA)

DNA

deoxyribonucleic acid; double stranded nucleic acid that stores and transmits genetic information

RNA

ribonucleic acid; a nucleic acid that plays an important role in the production of proteins

adenine

purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA

thymine

pyrimidine base found only in DNA; pairs with adenine

guanine

purine base found in DNA and RNA; pairs with cytosine

cytosine

pyrimidine base found in DNA and RNA; pairs with guanine

uracil

pyrimidine base found in RNA only; pairs with adenine

sugar phosphate backbone

the repeating pattern of connected sugars and phosphates which the nitrogenous bases are connected to

nucleotide

building block of a nucleic acid, consisting of a five-carbon sugar covalently bonded to a nitrogenous base and a phosphate group.