homologous chromosomes separate from one another in meiosis ii.
homologous chromosomes separate from one another in meiosis ii.
when do homologous chromosomes separate from one another?
meiosis ii
in the process of crossing-over, genes are exchanged by the breaking and union of homologous portions of the chromosomes’ lengths. structures called chiasmata are the site of the exchange. chiasmata physically link the homologous chromosomes once crossing over occurs and throughout the process of chromosomal segregation during meiosis. both the non-crossover and crossover types of recombination function as processes for repairing dna damage, particularly double-strand breaks. at the diplotene stage of prophase i the synaptonemal complex disassembles before which will allow the homologous chromosomes to separate, while the sister chromatids stay associated by their centromeres.









































section::::functions.:in meiosis.:metaphase i.
homologous chromosome
section::::phases.:meiosis i.:prophase i.:diplotene.









































during the "diplotene" stage, also known as "diplonema", from greek words meaning "two threads", the synaptonemal complex degrades and homologous chromosomes separate from one another a little. the chromosomes themselves uncoil a bit, allowing some transcription of dna. however, the homologous chromosomes of each bivalent remain tightly bound at chiasmata, the regions where crossing-over occurred. the chiasmata remain on the chromosomes until they are severed at the transition to anaphase i.
meiosis