A DNA strand is made up of hundreds of thousands of nucleotides put together. A nucleotide is a type of molecule (organic molecule, to be specific) that is made up of a phosphate, a sugar, and a nitrogen base. In all DNA nucleotides, there is always the same phosphate and sugar. But the nitrogen bases differ. There are four nitrogen bases in DNA--Adenine, Guanine, Cytosine, and Thymine.
What is the highest paved road in the world? The world's highest paved road is the Ticlio Pass on the Carretera Central (Central Highway) in Peru. The highest point is 4,818 meters above sea level, or almost 16,000 feet.â¦. 7 people found this useful.
The first paved road in the United States was the former Philadelphia and Lancaster Turnpike, which makes up part of the present-day U.S. Route 30. Opened in 1795, the Turnpike connected the cities of Lancaster and Philadelphia, and was designed by a Scottish engineer named John Loudon McAdam.