Â· just now. Report Abuse. The structure of DNA is a double helix, much like a ladder that is twisted into a spiral shape. The nucleotide bases (A, T, C, G) that make up your genetic code are found in pairs in the middle of the helix. These base pairs make up the ârungsâ or steps of the ladder.he base pairs that make up the rungs of the ladder are attached to the sugars in the sugar-phosphate chains that form the uprights of the ladder. Source(s): Nucleic Acids DNA and RNA by Anthony Carpi, Ph.D. at Vision Learning http://www.visionlearning.com/library/mo...
Spirit of St. Louis. This Ryan M-2 âSpirit of St. Louisâ made history when it made the first solo, nonstop flight from New York to Paris in 1927, and this 1/4-scale model would certainly make pilot Charles Lindbergh proud. With a 141.7-inch wingspan, the 66-pound model is powered by a radial 4-stroke thatâs an authentic reproduction of the original Pratt & Whitney R9.
website: schlafly.com. Founded in 1991, Saint Louis Brewery, Llc is a mid-sized organization in the malt beverage manufacturers industry located in Saint Louis, MO. It has 100 full time employees and generates an estimated $30.6 million in annual revenue.