Produces a single, centric, rod-X chromosome and either an acentric, ring-X or a tandem triple-X chromosome by recombination between the proximal and distal X chromosomes.
Novitski.
exchange of the proximal heterochromatin of In(1)sc4 and YS of YSX.YL
C(1)TA1, In(1)sc4 - In(1)EN.YL, y sc4 - y..