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| Description: Self-complementarity in a base sequence allows a chain to fold back on itself and form a base-paired, antiparallel helix or hairpin structure Double hairpins, often called cruciform (cross-like) structures, can be formed in some DNA sequences. To form this structure, the sequence must be palindromic. The word palindrome is of literary origin and usually refers to a statement that reads the same backward and forward, such as “Able was I ere I saw Elba.” Picture Stats: Views: 247 Filesize: 66.94kB Height: 700 Width: 509 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=33896 |