Homologous recombination is a basic process of life, which is necessary to protect and restart broken replication forks, repair chromosome breaks and exchange genetic material during meiosis. Recently, in a research report titled “Structure and function of the RAD51B-RAD51C-RAD51D-XRCC2 tumor suppressor complex” published in the journal Nature, scientists from institutions such as the Francis Crick Institute summarized the structure and function of a special protein complex, which is crucial for…