A species of animal was observed to travel from a large island to smaller subset islands. Initially, the population of the island was 0.6 for A1 and 0.4 A2. After 30 generations, the allelic frequency was observed to be 0.01A1 and 0.99A2. Which of the following scenarios can best describe this observation? Genetic drift. Population in HWE. Genetic diversity. A&B..