Barr bodies - exam question

A Barr body is an inactive X chromosome in a cell with more than one X chromosome, rendered inactive in a process called lyonization, in species with XY sex-determination. The Lyon hypothesis states that in cells with multiple X chromosomes, all but one are inactivated during mammalian embryogenesis. #barrBodies #Enbriogenesiss #xChromosomeInactivation #biology #NikolaysGeneticsLessons #barrBody #genetics #chromosome #Karyotype #tokoph #catalystUniversity #biochemistry #physiology #XChromosome #yChromosome #geneSilencing #XlinkedTraits #lyonisation #dosageCompensation #barrBodyFromCheekEpithelialCells #barrBodyFromWhiteBloodCellsWBCs #drumstickBarrBody #neutrophilBarrBody #barrBodyTemporarySlideMount #cytology