Cytogenetic recombinants from a female carrying a paracentric inversion of the short arm of chromosome number 5.

We present a family, identified through a girl with "Cri-du-chat syndrome", in which two different types of recombinants exist [del(5)(qter leads to p14:) and dup(5)(p13)]. They are due to a 5p paracentric inversion of maternal origin [inv(5)(pter p13)]. We discuss the relationship between the breakpoints and segregation of the inversion carrier, as well as the origin and the identification of the recombinants.