Alouatta 2 Y chromosome 2 centromere 2 karyotype 2 male 2 meiosis 2 metaphase 2 nonhuman 2 pachytene priority journal 2 sex chromosome 2 synaptonemal complex 2 Alouatta caraya 1 Alouatta guariba clamitans 1 Animals 1 Argentina 1 Article 1 C banding 1 Cytogenetic Analysis 1 Female 1 Germ Cells 1 Male 1 Meiosis 1 Multiple sex chromosome systems 1 Multiple sex chromosomes 1 Primates 1 Quadrivalent analysis 1 Sex Chromosomes 1 Sex Determination Processes 1 Sex chromosome pentavalent 1