Consider the drawing of a dinucleotide below. Suppose that the molecule was cleaved with the enzyme spleen phosphodiesterase, which breaks the covalent bond connecting the phosphate to C-5'. After cleavage, to which nucleoside is the phosphate now attached (A or T)?

Hello everyone and welcome to today's video. So in the waxen and craig model, the nitrogenous bases are attached to the sugar phosphate backbone through the which of these following structures. Well, in order to solve this problem, we're going to be visualizing these DNA molecule and here we have it. As we can see we have these nitrogenous bases to the right and we have the phosphate backbone to the left. So what is connecting these two together? It is going to be this molecule here and it has oxygen, carbon and hydrogen. And if you remember from chemistry this is going to be a sugar. So this nitrogenous bases are connected to the phosphate backbone through the sugar in D. N. A. The sugar is called the oxy rivals, hence the D in D N. A. So the correct answer choice for this is going to be answer choice A de oxy rivals. I really hope this video helped you and I hope to see you on the next one.