Small modifications to these compounds can be produced at mass when they are synthesized on a semiconductor scaffold by the company Twist. A methylene bridge can cause inaccessibility due to ring puckering in the “locked” version of these compounds. DMT is used as a protecting agent in the phosphoramidite (“phosphor-AM-uh-dite”) method of synthesizing these compounds. Short samples of these compounds are layered on top of a scaffold to form 3D structures of them nicknamed “origami.” The melting temperature of these compounds (10[1])increases with the number of subunits that can form 3 hydrogen bonds instead of 2. (10[1])Each subunit of these compounds consists of a phosphate, a 5-carbon sugar, (10[1]-5[1])and either (10[1])a pyrimidine or purine. (10[1]-5[1])For 10 points, name this class of compounds exemplified (10[1])by DNA and RNA. ■END■ (10[1]0[1])