Figure 3. Base stacking. The 5′ base in the left strand is part of a base pair that is colored gray and is on the bottom. The 3′ base in the left strand is part of a base pair that is colored black and is on the top
Figure 3. Base stacking. The 5′ base in the left strand is part of a base pair that is colored gray and is on the bottom. The 3′ base in the left strand is part of a base pair that is colored black and is on the top