There are numerous exceptions, howeverâsome viruses have genomes made of double-stranded RNA and other viruses have single-stranded DNA genomes, and, in some circumstances, nucleic acid structures with three or four strands can form.ach nucleotide has three components: a 5-carbon sugar, a phosphate group, and a nitrogenous base. If the sugar is deoxyribose, the polymer is DNA. If the sugar is ribose, the polymer is RNA. When sugar and a nitrogenous base get combined they form a nucleotide. Nucleotides are also known as phosphate nucleotides.
1 2003: The BlizzardÂ® of the Month program kicks off. 2  2004: The MooLatte Â® Frozen Coffee Flavored Beverage line debuts in Mocha, Vanilla and Caramel flavors. 3  2004: Award-winning Dairy QueenÂ® commercials can be seen throughout the country in the system's first full year of national advertising.
The National League operated a franchise in Washington until 1899. That team, called the Senators, folded and the new American League took Washington as an original franchise city when it began play in 1901. This team, called the Nationals, opened with a 5-1 win against Philadelphia's Athletics on April 26, 1901.