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Main observations in A. cepa meristematic cells exposed to San Martín Hospital wastewaters: (a) normal anaphase; (b) anaphase with chromosome loss or vagrant (arrow); (c) anaphase with one chromosome bridge (arrow); (d) anaphase with two chromosome bridges (arrow) and losses (arrowhead); (e) telophase with chromosome fragment (arrow); (f) interphase with micronucleus (arrow).
