Study on bizarre rodent genetics solves a mystery and reveals another

Researchers uncover what one co-author describes as 'the weirdest sex chromosome system known to science': an unassuming vole species whose X and Y chromosomes have fused, switched roles and swapped smaller pieces of DNA. The discovery is a rare exception to mammals' remarkably stable sex determination system.

from Top Environment News -- ScienceDaily https://ift.tt/3oBncFN