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Are homologous chromosomes joined together by cohesins?

shankar jan

Please share your thoughts :smile:

Reply 1

wjblessing

From DNA replication until anaphase, yes

Reply 2

shankar jan

Original post by wjblessing

From DNA replication until anaphase, yes

Thanks so much! Are there also cohesins between sister chromatids? Different sources say different things. I have attached 2 images below which contradict each other. First image shows cohesins between sister chromatids and not between homologous chromosomes. The second image shows cohesins between distal parts of homologous chromosomes.

Reply 3

wjblessing

Sorry, cohesins are present between sister chromatids from DNA replication until anaphase. I believe they are also present on the proximal position as they help the spindle diners attach to the kinetochore complex. Cohesin is also found on the distal region