  The uprights are called the backbone and is made up of ribose (a pentose sugar) and phosphate. The rungs are the bases that are the actual coding bit of DNA. These are c â¦ arbon and nitrogen-based molecules that attach to the backbone.he rungs are made up of four nitrogen bases called Guanine, Thymine, Adenine, and Cytosine. Adenine (A) always pairs up with Thymine(T). Guanine (G) always pairs up Cytosin â¦ e(C). The object that connects them is a hydrogen base.
Travel to Ionian islands: Travel information about flights and ferries to Ionian islands. There are airports in Corfu, Lefkada (Aktion/Preveza), Kefalonia, Zakynthos and Kythira. The airports of Corfu, Kefalonia and Zakynthos receive domestic flights from Athens and Thessaloniki and also charter flights from abroad in summer.
From Wikipedia, the free encyclopedia. Providenciales International Airport (IATA: PLS, ICAO: MBPV), on the island of Providenciales in the Caicos Islands, is the main international airport serving the Turks and Caicos Islands, a British Overseas Territory of the United Kingdom. It is operated by Turks and Caicos Islands Airports Authority (TCIAA). The territory's other international airport is JAGS McCartney International Airport on Grand Turk Island. Currently, there are more than 12,000 commercial aircraft operations per year.