Cover: The cover figure shows a spermatocyte from an infertile man immunostained with antibodies against SCP1 and SCP3 (red) to observe synapsis, MLH1 (green) to visualize sites of recombination, and CREST antiserum (blue) to identify centromeres. Meiotic defects, such as abnormal recombination and an increase in unpaired regions (arrows) were observed in some members of the infertile population. See Ferguson et al., pp. 2870-2879, this issue, for more information.
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