Lethal allele is a term used in genetics to describe genetic mutations that cause death in an organism. However, there are other synonyms that can also be used to describe this same phenomenon. For example, one may refer to these mutations as "deadly genes," "fatal alleles," or "toxic mutations." Other possible synonyms may include "lethal genotypes," "killer genes," or "death-inducing mutations." No matter what term is used to describe this type of genetic mutation, it is essential to understand its potential impact on the organism's development and survival. By recognizing these mutations and understanding their consequences, scientists can better predict and prevent genetic disorders that may arise due to lethal alleles.