the data indicate that joint loss occurs in competent cells and that preferential assortment of the two deficient chromosomes to specific poles is unlikely.-b chromosomes and deficient chromosomes assort independently at the second microspore anaphase.-genetic data from crosses with marker genes in both arms of chromosome 3 show that breakage of the postulated dicentric bridge does not occur solely at the centric region since a variety of deficient chromosomes were recovered.-nondisjunction of b chromosomes and elimination of knobbed chromatin take place during the second microspore mitosis .
C0007634
cells
C0002788
anaphase