repeating phosphate and nitrogenous groups, repeating sugar and nitrogenous groups, repeating phosphate and sugar groups, repeating phosphate and alpha-amino acid groups, or none of those.
2006-12-06 08:44:56 · 5 answers · asked by Dan Schlind 3 in Science & Mathematics ➔ Chemistry
Repeating phosphate and sugar groups. BTW this is a biology question, not a chem one.
2006-12-06 08:47:43 · answer #1 · answered by Anonymous · 0⤊ 0⤋
sugar and phosphate. the nitrogenous groups are the A, T, G, C.
2006-12-06 16:53:54 · answer #2 · answered by laughinggerbil 2 · 0⤊ 0⤋
Repeating phosphate and sugar groups. In particular, phosphoric acid, O=P(OH)3, is esterified with two -OH groups of deoxyribose, which is the sugar. "Nitrogenous groups" must be adenine, cytidine, thymine, and guanine, attached to each deoxyribose group, "Up and off to the right." But they are not part of the backbone. *alpha*-aminoacids are not a part of DNA.
2006-12-06 16:51:50 · answer #3 · answered by steve_geo1 7 · 0⤊ 0⤋
repeating phosphate and sugar groups
2006-12-06 16:51:43 · answer #4 · answered by Todd D 3 · 0⤊ 0⤋
pentose sugar and phosphate groups.
2006-12-06 16:56:06 · answer #5 · answered by tmlfan 4 · 0⤊ 0⤋