Answer:
Gene duplication
Step-by-step explanation:
Gene duplication is defined as a process by which new genetic materials are produced during the course of molecular evolution. It refers to the replication of a portion of DNA that is comprised of a gene. This process is sometimes essential to the organism and may also result in the development of a new type of species. They also considered the chromosomal duplication process. For example, the different types of keratin that are found in the body are due to the replication of a single gene.