Copying operation used by the program of complexity decomposition by Lempel-Ziv method


Classification of repeats in DNA sequences:

1) Direct (type D) AGCTTT...AGCTTT


2) Symmetric (type S) AGCTTT...TTTCGA


3) Inverted (symmetric complementary) (type I) AGCTTT...AAAGCT


4) Direct Complementary (type C) AGCTTT...TCGAAA


Presentation on double strand:



Significance of type D and I repeats is beyond any doubts; the possibility of existence of nonrandom type C repeats and a presumable effect of type S repeats on formation of the RNA structure were discussed.