Genetic drift is change of.

Options

A. gene frequency in same generation
B. apperance of recessive genes
C. gene frequency form the one generation to next
D. None of the above

Explanation

**Step-by-Step Solution:**

1. **Definition of Genetic Drift**: Genetic drift is a mechanism of evolution that refers to random changes in the frequency of alleles (gene variants) in a population's gene pool. It is important to understand that genetic drift is not a result of natural selection but rather random chance events.

2. **Mechanism of Evolution**: Genetic drift is one of the several mechanisms of evolution, alongside natural selection, mutation, and gene flow. It plays a significant role in how populations evolve over time.

3. **Random Fluctuations**: In genetic drift, there are random fluctuations in the genotype of organisms. This means that certain alleles may become more or less common purely by chance, rather than because they confer any advantage or disadvantage.

4. **Occurrence in Small Populations**: Genetic drift is most pronounced in small populations. In larger populations, the effects of genetic drift are often masked by the larger number of individuals, making it less likely for random changes to significantly alter allele frequencies.

5. **Evaluating Options**:
- Option 1 states "change of the gene frequency in the same generation." This is incorrect as genetic drift typically refers to changes observed across generations, not within a single generation.
- Option 2 states "the appearance of recessive genes." While genetic drift can lead to the appearance of recessive genes, it can also affect dominant genes. Thus, this statement is too narrow and not entirely accurate.
- Option 3 states "change of gene frequency from one generation to another." This accurately reflects the concept of genetic drift, as it involves changes in allele frequencies over successive generations.

6. **Conclusion**: Based on the evaluation of the options, the correct answer is Option 3, which states that genetic drift involves the change of gene frequency from one generation to another.

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