Practice question

Neoschizomers are restriction enzymes that recognize identical or closely related DNA sequences but cleave at different phosphodiester bonds, producing distinct termini. Isoschizomers cut identically, while neoschizomers illustrate variation in cleavage position. XhoI recognizing C^TCGAG and SalI recognizing G^TCGAC are classic textbook examples frequently grouped as neoschizomers because they recognize overlapping TCGA core motifs and generate compatible cohesive ends with different overall specificity, demonstrating same-site family with divergent cut patterns. Understanding this distinction is crucial for restriction mapping and compatible-end cloning strategies.