Commonly used interchangeably with nucleotide pair. A pair of ~s (usually one purine and one pyrimidine) held together by hydrogen bonds in a double-stranded region of nucleic acid molecule. It would be more accurate to label the nucleotide deoxyadenosine monophosphate, as it includes the sugar deoxyribose and a phosphate group in addition to the ~.īase pair. ![]() He concluded that the basic unit (nucleotide) was composed of a base attached to a sugar and that the phosphate also attached to the sugar.Īdenine is a compound which is found in the adenosine, it's made of a ~, and together with Guanine, another ~, their structure make them to be classified as Purines.Īdenine refers to a portion of the molecule, the ~. He found it contained four ~s: cytosine, thymine, adenine, and guanine deoxyribose sugar and a phosphate group. In RNA, uracil (U) is used instead of thymine. There are four bases ("letters" so to speak) in the DNA "language": adenine (A), guanine (G), cytosine (C), or thymine (T). The DNA molecule is a chain of nucleotides each consisting of a backbone made of a sugar and a phosphate group, with a ~ attached. In DNA the ~s are the purines, adenine (A), guanine (G), and the pyrimidines, cytosine (C) and thymine (T).Ī ~, which can be either adenine, guanine, cytosine, or thymine (in the case of RNA, thymine is replaced by uracil).Ī five-carbon sugar, called deoxyribose because it is lacking an oxygen group on one of its carbons. īase pairs (unit: bp), which form between specific nucleobases (also termed ~s), are the building blocks of the DNA double helix and contribute to the folded structure of both DNA and RNA.Ī nucleotide is made up of a ~ and a phosphate group covalently bonded to a five-carbon sugar molecule (deoxyribose in DNA and ribose in RNA). What holds them together are hydrogen bonds between the ~s and one of the things that you'll have to learn in class is something called the base pairing rules which are named after Aaron Chargaff's so they are called Chargaff's rules and that'. Increasing the activity of bacteria that decompose pollutants a technique used in bioremediation. Also, the unit of measurement for DNA sequences. The percentage of ~s on a DNA molecule which are either adenine or thymine (from a possibility of four different ones, also including cytosine and guanine).Ī pair of complementary ~s in a DNA molecule-adenine-thymine and guanine-cytosine. Adenine a purine ~ that is found in DNA and RNA.Īdrenal Gland one of a pair of glands found adjacent to the kidney which is responsible for secreting several important hormones.Īdrenaline a hormone secreted by the adrenal glands at times of stress.
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