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Genetic drift...

Genetic drift

A

Is random change in gene frequency

B

Has nothing in common with inbreeding

C

Is appearance of recessive genes

D

Produces greatest fluctuation in large populations

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Genetic Drift**: - Genetic drift refers to the random fluctuations in the frequencies of alleles (gene variants) in a population. It is a mechanism of evolution that can lead to significant changes in a population's genetic makeup over time. 2. **Identifying Key Characteristics**: - Genetic drift is characterized by random changes in gene frequency. This means that allele frequencies can increase or decrease by chance rather than by natural selection. 3. **Evaluating the Options**: - **Option 1**: "is a random change in gene frequency" - This aligns with the definition of genetic drift. - **Option 2**: "has nothing in common with inbreeding" - This is misleading. While genetic drift and inbreeding are different concepts, they can both affect allele frequencies in a population. - **Option 3**: "is appearance of received genes" - This does not accurately describe genetic drift. - **Option 4**: "produces greatest fluctuation in large population" - This is incorrect; genetic drift typically has a more pronounced effect in small populations. 4. **Conclusion**: - Based on the evaluation of the options, the correct answer is **Option 1: "is a random change in gene frequency."** This option accurately describes the nature of genetic drift.
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