Showing papers on "Sister chromatid exchange published in 1966"
TL;DR: It is concluded that sister chromatid exchanges are common prior to meiosis, and that chiasmata do not show crossing-over of labeled material as is expected if the chiasmatta are the result of breakage and rejoining or if chiasmATA and crossovers are not related.
Abstract: A technique is described which gives well-defined label on meiotic chromosomes which incorporated tritiated thymidine two or more mitotic cycles prior to meiosis. It is shown that the distribution of label on meiotic chromosomes can be used to determine in which mitotic cycles label was incorporated. It is concluded that sister chromatid exchanges are common prior to meiosis, and that chiasmata do not show crossing-over of labeled material as is expected if the chiasmata are the result of breakage and rejoining or if chiasmata and crossovers are not related.
12 citations