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Distribution of pol III terminators or their rudiments among Can copies with poly(A) tails of different lengths. (A) Can_a1 subfamily; (B) Can_b1 subfamily; (C) Can_b1Y, young b1 copies; (D) Can_b2 subfamily. The number of analyzed Can copies is indicated below as N = number. V in terminator sequences corresponds to C, A, or G.
