The meiotic behavior of triploidy in a human 69,XXX fetus

摘要

Meiotic studies were made on the fetal ovaries of a triploid fetus, 69, XXX. The association modalities of the three chromosomes in human triploidy are the same as those described in several plant species; i.e., trivalents, bivalents and univalents can be found in the same nucleus. In most cases of trivalent configuration, the association occurs between pairs.