DNA can undergo transitions to form a cruciform shape, otherwise known as a Holliday junction.
Riccarton Junction railway station | Petticoat Junction | junction | Doc Holliday | Junction (traffic) | Haines Junction, Yukon | Grand Junction, Colorado | Junction | White River Junction, Vermont | Haines Junction | Grand Junction | Llandudno Junction | Bhowani Junction | Annapolis Junction, Maryland | The Junction | Polly Holliday | Junction Oval | Jennifer Holliday | Grand Junction Railway | Fredericton Junction, New Brunswick | Fredericton Junction | Mingo Junction, Ohio | J.W. Holliday Jr. House | Junction (rail) | Hallelujah Junction | Grand Junction Canal | Death Valley Junction, California | California Junction, Iowa | California Junction | Birmingham and Liverpool Junction Canal |