Essential parts of yeast chromosomes actually evolved from ancient genomic junk
Critical components of yeast chromosomes once thought to be useless genetic debris actually evolved from ancient, self-replicating genomic junk known as retrotransposons over millions of years.
Centromeres are the structural anchors of chromosomes, yet in certain yeast species, these vital components originated from repetitive genetic parasites. Researchers discovered that these fungi repurposed ancient retrotransposons, which are mobile DNA sequences often dismissed as genomic junk, to perform essential cellular functions.
There's more to this story — open the app to keep reading.