Fig. 1From: Biogenesis and functions of circular RNAs and their role in diseases of the female reproductive systemThe exons are represented by rectangles of different colors, whereas the introns are represented by black lines. CircRNA may be synthesized in three ways—direct post-splicing, exon jumping, and combined direct post-splicing and exon jumping. The pathway of mature migration to the cytoplasm remains unclear. CircRNA is assumed to pass through the nuclear pore complex across the nuclear membraneBack to article page