You're viewing this item in the new Europeana website. View this item in the original Europeana.

Meiosis

Mouse chromosomes at the pachytene stage of meiosis. The green stain highlights the synaptonemal complex, a structure that holds the two chromosomes of a pair together prior to recombination. The blue stain shows the loosely condensed DNA. The red stain shows the tumour suppressor protein, BRCA1, binding to the sex chromosomes and to all the telomeres. BRCA1 is thought to be involved in inactivati…