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Fig. 3. Yeast origin ARS1 and its B2 element cannot functionally replace
ori-ß. (A) Yeast origin ARS1 and its DNA unwinding element B2 were cloned
into the BP construct replacing the entire ori-ß to generate constructs
BP-ARS1 and BP-B2, respectively. (B) Quantitation of amplification levels for
independent transgenic lines. BP, Big Parent line 3; OD, the ori-ß total
deletion line 1.