The structure of nucleotide monomers. A nucleotide is made of a nucleobase (also termed a nitrogenous base), a five-carbon sugar (either ribose or 2-deoxyribose) depending on if it is DNA or RNA, and one or, depending on the definition, more than one phosphate groups. nucleotide is made of a nucleobase (also termed a nitrogenous base), a five-carbon sugar (either ribose or 2-deoxyribose) depending on if it is DNA or RNA, and one or, depending on the definition, more than one phosphate groups.
The most common image file formats, the most important for cameras, printing, scanning, and internet use, are JPG, TIF, PNG, and GIF. 1  JPG is the most used image file format. 2  Digital cameras and web pages normally use JPG files-because JPG heroically compresses the data to be very much smaller in the file.
Some examples of file extensions include .txt, .mp3, .jpg, and .gz, which represent text files, mp3 files, jpeg image files, and files compressed with the gzip program. As you can see, the actual extension name gives clues as to the type of file it is. When trying to determine a file's extension it is important to remember that the extension is simply the last period in a file and the characters that follow it. If there is no period in a file, then it does not have an extension.