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mutation rate
This term is a technical compound noun used primarily in genetics and evolutionary biology. It describes a quantitative measurement of genetic change, typically expressed as the number of mutations per site per generation or per year. Because it is a scientific metric, it is almost exclusively used in formal, academic, or clinical registers.
In practical application, the term is often paired with modifiers such as "high," "low," "stable," or "accelerated" to describe the speed of genetic drift. It is distinct from "mutation frequency," which refers to the proportion of mutants in a population at a single point in time, whereas the rate focuses on the temporal process of change.
Meanings
Examples
The high mutation rate of the influenza virus makes it difficult to create a universal vaccine.
I wonder if a lower mutation rate would have prevented this genetic disorder.
We need to determine the mutation rate before we can estimate the age of the species.
The mutation rate is significantly higher in certain regions of the genome.
Wait, does this mean the mutation rate has increased since the last sample?
Environmental stressors can sometimes accelerate the mutation rate in bacteria.
Environmental stressors can sometimes accelerate the mutation rate in bacteria.
The ancient organism had an incredibly stable mutation rate over millions of years.
If the mutation rate is too high, the offspring may not survive.