Conservatism is a political and social philosophy promoting traditional social institutions in the context of culture and civilization. The central tenets of conservatism include tradition, human imperfection, organic society, hierarchy and authority and property rights. Conservatives seek to preserve a range of institutions such as monarchy, religion, parliamentary government and property rights with the aim of emphasizing social stability and continuity while the more extreme elements called r
The sides of the DNA ladder are long chains of sugars and phosphates (fahs-fates). The rungs of the ladder are four chemical bases: adenine (add-n-een), guanine (gwa-neen), cytosine (sigh-tuh-seen) and thymine (thigh-meen). Adenine (A) always pairs with thymine (T) and guanine (G) always pairs with cytosine (C).he sides of the DNA ladder are long chains of sugars and phosphates (fahs-fates). The rungs of the ladder are four chemical bases: adenine (add-n-een), guanine (gwa-neen), cytosine (sigh-tuh-seen) and thymine (thigh-meen). Adenine (A) always pairs with thymine (T) and guanine (G) always pairs with cytosine (C).
Concept 19 The DNA molecule is shaped like a twisted ladder. Earlier work had shown that DNA is composed of building blocks called nucleotides consisting of a deoxyribose sugar, a phosphate group, and one of four nitrogen bases â adenine (A), thymine (T), guanine (G), and cytosine (C).Phosphates and sugars of adjacent nucleotides link to form a long polymer.Other key experiments showed that the ratios of A-to-T and G-to-C are constant in all living things. X-ray crystallography provided the final clue that the DNA molecule is a double helix, shaped like a twisted ladder.n 1953, the race to determine how these pieces fit together in a three-dimensional structure was won by James Watson and Francis Crick at the Cavendish Laboratory in Cambridge, England. They showed that alternating deoxyribose and phosphate molecules form the twisted uprights of the DNA ladder.