Biology
Grade-9
Easy
Question
______ is the driving force of evolution.
- Variation
- Mutation
- Reproduction
- Natural selection
Hint:
Genetic variations can arise from gene variants. Genetic variations that alter gene activity or protein function can introduce different traits in an organism that leads to the volution.
The correct answer is: Variation
- Genetic variations can arise from gene variants (also called mutations) or from a normal process in which genetic material is rearranged as a cell is getting ready to divide (known as genetic recombination)
- It is well known that the main driving forces of evolution in any population are mutation, natural selection, genetic drift, and gene flow.
- The ability of these driving forces to perform their role is dependent on the amount of genetic diversity within and among populations.
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