Among living organisms, which one of the following is the most responsible factor for bringing about the origin of a new species?
- AIsolation
- BMutationCorrect
- CNatural Selection
- DSexual Reproduction
Explanation
Mutation is the correct answer because it is the primary source of new genetic variations. While natural selection and isolation act upon existing traits to shape a species over time, mutation is the specific biological process that creates entirely new alleles or changes in the DNA sequence. Without these random genetic changes, there would be no new traits for natural selection to favor, making mutation the fundamental factor that initiates the evolutionary path toward the origin of a new species.
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