Twins, multiple pregnancies and multiple births in relation to genetics, fertility treatment and early development will be the subject of the Progress Educational Trust’s annual conference in London on 4 December. Participants will include Jane Denton, Jane Fisher, Dr Jane Hurst, Dr Yacoub Khalaf, James Lawford Davies, Professor Scott Nelson, Sarah Norcross, Professor Marcus Pembrey, Professor Robert Plomin and Mohammed Taranissi. Fee: £130. The trust‘s objective is “to create an environment in which ethically sound research and practice in genetics, assisted conception, embryo/stem cell research and related areas will thrive.”