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Fig. 5 Meiotic pairing configurations at metaphase I in 42-chromosome F1 hybrids from crosses between primary trisomics. a. A cell with 21 bivalents in F1 hybrid of SRF-70:28 x triplo 5. b. A cell with 20 bivalents and two univalents (arrows) in F1 hybrid of triplo 2 x triplo 5. c. A cell with one V-shaped trivalent (indicated by a large arrow) 19 bivalents and one univalent trivalent (indicated by a small arrow) in F1 hybrid of triplo 2 x triplo 5. d. A cell with one chain trivalent (indicated by arrow) and one V-shaped trivalent (indicated by arrow) and 18 bivalents in F1 hybrid of triplo 2 x triplo 5. Bar = 10 µm
