Press Start. And voila !!! Enjoy your new SD card !!! Officially, the 3DS only supports SD and SDHC cards (of which, the upper limit on SDHC is 32GB). And for out-of-the-box solutions, it is true that 32GB is the largest SD card you can buy. However, after some digging, it is less that the 3DS does not support SDXC cards (64GB+), but rather that is does not support the exFAT file system that these eXtreme Capacity cards utilize.
The sides of the DNA ladder are made up of a combination of alternating sugars and phosphates. These molecules are what holds the rungs of DNA together on the ladder.
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases.