Welcome to Episode four of this series! We recorded a fantastic episode on MDS with Beth Payne a few months ago, and have been looking for an opportunity to release this additional part of our conversation. We had a wide ranging conversation, but initially had asked Beth to explain Diamond-Blackfan Anaemia (DBFA) to us. Our subsequent conversation then touches on her research with Zebrafish, how genes can be 'knocked in' and 'knocked out' in lab work, how CRISPR-Cas9 works and finally how viruses can infect bacteria.