This page discusses silent mutations that do not impact phenotypes, often found in non-coding regions or due to genetic redundancy. It mentions how some mutations in essential genes can result in rece...This page discusses silent mutations that do not impact phenotypes, often found in non-coding regions or due to genetic redundancy. It mentions how some mutations in essential genes can result in recessive lethal alleles, making them difficult to detect. The text also explains the naming convention of genes based on mutant phenotypes rather than their normal functions, using the example of the white gene in fruit flies to illustrate potential confusion.