Mutations in dna found in which cells are most likely to have significant evolutionary consequences?

Mutations in gamete cells.

Explanation:

Mutations in gamete cells, called germinal mutations, occurs in reproductive cells that fully develops to ovum and sperm. When a mutated sperm or egg cell (genetically altered) come together to form a zygote during fertilization, they pass down that mutation to their offspring and it stands a chance of being inherited by future generations. It is through random germinal mutations that evolution occurs.

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.