Dna-dependent formation of the synaptinemal complex at meiotic prophase... the presence of deoxyadenosine, an inhibitor of DNA synthesis, indicate that: (1) late leptonema or early zygonema DNA synthesis is required to initiate the formation of the synaptinemal complex; (2) DNA synthesized during late zygonema is necessary for the disjunction of the paired homologs at diplonema; and (3) DNA synthesis in pachynema is a requisite...
Dna-dependent formation of the synaptinemal complex at meiotic prophase... the presence of deoxyadenosine, an inhibitor of DNA synthesis, indicate that: (I) late leptonema or early zygonema DNA synthesis is required to initiate the formation of the synaptinemal complex; (2) DNA synthesized during late zygonema is necessary for the disjunction of the paired homologs at diplonema; and (3) DNA synthesis in pachynema is a requisite...
The synaptinemal complex in homologous and nonhomologous pairing of chromosomesAs pointed out in the two preceding communi-cations (Jones, Moens, this volume), the relation-ship of the synaptinemal complex to four-strand crossing-over at meiotic prophase can be explored by studying favorable cytological material, sex bivalents, chromosomal berrations, and hetero-ploids,...
The synaptinemal complex and four-strand crossing overThe synaptinemal complex provides a structural basis for four-strand crossing over: prior to chromosome pairing, both sister chromatids of each homologous chromosome participate in...
