The order of bases contains the information needed to code for amino acids in proteins during translation.Hydrogen bonds stabilize the double helix, but can be broken when DNA needs to be accessed.A complementary strand can always be synthesized from a single strand, due to the arrangement of hydrogen bonds between GC and AT bases.Important properties that are derived from the DNA structure are: (OpenStax-CNX)Īs for most biological molecules, the structure is important to the function, and the function of DNA is to contain information. The 5ʹ end is the one where carbon #5 is not bound to another nucleotide the 3ʹ end is the one where carbon #3 is not bound to another nucleotide and has a free hydroxyl group. (c) The direction of each strand is identified by numbering the carbons (1 through 5) in each sugar molecule. (b) The two DNA strands are antiparallel to each other. sugar-phosphate unit making up the helical backbone of the DNA molecule. (a) The sugar-phosphate backbones are on the outside of the double helix and purines and pyrimidines form the “rungs” of the DNA helix ladder. sugar ribose and the base thymine is replaced by another pyrimidine, uracil. Waxes consist of a glycerol bonded to three long-chain fatty acids.True or false. Has fatty acids with no double bonds between the carbon atoms. \):Watson and Crick proposed the double helix model for DNA. The sugar and phosphate group make up the backbone of the DNA double helix, while the bases are located in the middle. The DNA backbone is also called the sugar-phosphate backbone - the deoxyribose sugars (with, among other elements, 5 carbon atoms) and phosphates (PO4-) conjoin together in a very strong due to. has fatty acids with no double bonds between the carbon atoms.
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