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Tuatara: Volume 13, Issue 1, April 1965
Fig. 6: Diplotene bivalent from a spermatocyte of the salamander Oedipina poelzi. The cross configuration in the centre is a chiasma, a cross-over between two chromatids, one from each of the two synapsed homologous chromosomes (cf. Fig. 7). The dark portions are the centromeric regions. (Courtesy J. Kezer, Univ. of Oregon.)
Fig. 6: Diplotene bivalent from a spermatocyte of the salamander Oedipina poelzi. The cross configuration in the centre is a chiasma, a cross-over between two chromatids, one from each of the two synapsed homologous chromosomes (cf. Fig. 7). The dark portions are the centromeric regions. (Courtesy J. Kezer, Univ. of Oregon.)