Topps may have lost its NFL contract in â64, but getting Namath kept those old AFL sets relevantâand fairly valuable. Joe Willieâs rookie card is hard to find centered and because of the myriad of condition sensibilities, itâs one of the most expensive football cards ever to come out of the Topps roster.
Report Abuse. Chromosomes are made up of DNA packaged with histones and other proteins. DNA is deoxyribonucleic acid, an extremely long polymer whose repeating units are each made up of a phosphate plus a deoxyribose sugar plus a nitrogenous base.
Sugar Backbones. DNA and RNA are made up of subunits called nucleotides. All nucleotides have a sugar backbone, a phosphate group, and a nitrogenous base. Both DNA and RNA have sugar âbackbonesâ that are made up of five carbon molecules. However, they are different sugars that make them up. DNA is made up of deoxyribose and RNA is made up of ribose. Those sound pretty similar and their structures are very similar.