Answer:
The rate of mutation is low
Step-by-step explanation:
Biosynthesis of leucine means the biological production or breakdown of leucine.
Leucine is very important in the body because it helps in the protein synthesis and muscular development. It should be understood also that too much of leucine in the body might result to low blood pressure.
In this case, the rate of mutation to the locus related to leucine biosythesis will be low.