Question

case study figure 18 - 5 selection on a single - gene trait natural selection on a single - gene trait can lead to changes in allele frequencies and, thus, to evolution. this type of evolution can occur in bacteria as well. apply concepts what kind of mutation in disease - causing bacteria would lead to a change in allele and phenotype frequencies?

Explanation:

In bacteria, mutations in disease - causing bacteria can be of different types. Point mutations (substitution, insertion, deletion) can change the DNA sequence of a gene related to a single - gene trait, altering allele and phenotype frequencies. These mutations can provide a survival advantage or disadvantage in the environment, driving natural selection and evolution.

Answer:

Point mutations (substitution, insertion, deletion) can be the type of mutation in disease - causing bacteria that lead to changes in allele and phenotype frequencies.