a population of birds lives on a small island. another population of the same species lives on the mainland…

a population of birds lives on a small island. another population of the same species lives on the mainland. the distance between the island and the mainland is too great for birds to fly back and forth. recently, a series of sandbars and tiny islands have formed between the island and the mainland. what is the most likely effect of this? an increase in mutations in both bird populations an increase in gene flow between the bird populations an increase in genetic drift between the bird populations an increase in mutations in the island population
Answer
Brief Explanations:
Gene flow is the transfer of genetic material from one population to another. The formation of sand - bars and tiny islands allows birds to move between the island and mainland populations, facilitating gene flow. Mutations are random changes not directly related to the new land formations. Genetic drift is due to chance events and not related to the new connection.
Answer:
an increase in gene flow between the bird populations