Tetraploidy and aneuploidy after observation of diploid fertilization in vitro.
Abstract
A case is described in which a tetraploid and aneuploid conceptus resulted from dipronuclear embryos from in vitro fertilization. This finding strongly suggests that, after a meiotic error in either the egg or sperm, polyploidy has occurred as the result of a postfertilization mitotic error.
This paper has been withdrawn.