PGT-M involves several steps: 1. IVF Process: Eggs are fertilized with sperm in a laboratory setting. 2. Embryo Biopsy: A few cells are extracted from each embryo. 3. Genetic Analysis: The DNA of the cells is analyzed to detect the presence of specific genetic mutations. 4. Embryo Selection: Embryos without the genetic disorder are selected for transfer to the uterus.