Answer:
DNA evidence is a powerful tool for understanding evolutionary trees because it provides a record of genetic changes that have occurred over time. The genetic makeup of an organism is determined by its DNA sequence, which is passed down from generation to generation. Mutations, or changes in DNA sequence, can occur randomly or in response to environmental pressures. These mutations can accumulate over time and create genetic diversity within populations.
By comparing the DNA sequences of different organisms, scientists can infer how closely related they are and how long ago they shared a common ancestor. DNA evidence can also be used to identify similarities and differences between populations and to determine how populations have diverged over time.
Step-by-step explanation: