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Origin of the synaptonemal complexMaria Luiza Beçak; W. Beçak · 1972
W-Sex chromatin fluorescence in snakesW. Beçak; Maria Luiza Beçak · 1972
Chromosome secondary constrictions in different stages of developmentMaria Luiza Beçak; W. Beçak · 1973
Interspecific variability of DNA content in AmphibiaW. Beçak; Maria Luiza Beçak; G. Schreiber; D. Lavalle; Flàvia O. Amorim · 1970
Chromatin-free synaptonemal complex in whole mount preparationsMaria Luiza Beçak; W. Beçak; Sylvia M. Carneiro · 1975
A diploid population of the polyploid amphibianOdontophrynus americanusand an artificial intraspecific triploid hybridMaria Luiza Beçak; W. Beçak; L. D. Vizotto · 1970
Mouse sex vesicle. C-band and pairing at the light and electron microscopeMaria Luiza Beçak; Sylvia M. Carneiro; W. Beçak · 1977