We are learning about issues surrounding human genetics and eugenics, including

We are learning about issues surrounding human genetics and eugenics, including stem cell research, cloning, and genetic testing and treatment.
Choose and describe a scientific technique or practice related to genetics and eugenics. Provide the rationale behind the use of this technique or practice.
Discuss your thoughts and ideas regarding the technique or practice. Is it ever justifiable? Why or why not?
Textbook: Medical Ethics: Accounts of Ground-Breaking Cases. Pence, G. Boston: McGraw-Hill. 9th (2021)