Dominant lethal mutations

Definition

Mutations that result in the death of an organism when present in a single copy; typically, these mutations cause death before the organism can reproduce.

Etymology

From Latin 'dominare', meaning 'to dominate', and 'lethal' meaning 'deadly'.

Example

Dominant lethal mutations have been studied extensively to understand their role in population control.

Related Terms

• Lethal mutations
• Genetic engineering
• Sterile insect technique

Usage Notes

Dominant lethal mutations usually lead to the death of the organism early in development, preventing it from reaching reproductive age.