The cover of Human Reproduction shows a human pachytene spermatocyte. Upper panel: Synaptonemal complex (SCs) are shown in red, centromeres in blue and mut L homologue 1 (MLH1, a mismatch repair protein) foci in yellow. Lower panel: Subsequent centromere-specific multicolor FISH analysis allows identification of individual chromosomes so that recombination (MLH1) foci can be analyzed for each SC. For more details see Sun et al., pp. 1691-1697.
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