Choose the WRONG statement regarding the Hardy - Weinberg principle.

Options

A. The sum total of all the allelic frequencies in a population is 1.
B. Variation due to genetic drift results in a changed frequency of genes and alleles in future generations.
C. Natural selection can lead to stabilization, directional change , or disruption.
D. Genetic recombination helps in maintaining the Hardy - Weinberg equilibrium.

Answer

To solve the question regarding the Hardy-Weinberg principle and identify the wrong statement, we can follow these steps:

### Step 1: Understand the Hardy-Weinberg Principle
The Hardy-Weinberg principle states that allele frequencies in a population will remain constant from generation to generation in the absence of evolutionary influences. This is known as genetic equilibrium.

### Step 2: Identify Key Components of the Principle
1. **Allele Frequencies**: The sum total of all allele frequencies in a population is equal to 1.
2. **Genetic Equilibrium**: The principle assumes that certain conditions are met (no mutation, no gene flow, random mating, large population size, and no natural selection) for allele frequencies to remain stable.

### Step 3: Analyze the Statements
Now, let’s analyze the statements provided in the question:

1. **The sum total of all the allelic frequencies in a population is 1**: This statement is correct.
2. **Variations due to genetic drift results in changed frequency of gene and alleles in future generations**: This statement is also correct as genetic drift can lead to changes in allele frequencies.
3. **Genetic recombination helps in maintaining the Hardy-Weinberg Equilibrium**: This statement is incorrect. Genetic recombination introduces new combinations of alleles, which can disrupt the equilibrium rather than maintain it.

### Step 4: Conclusion
Based on the analysis, the wrong statement regarding the Hardy-Weinberg principle is the third one: "Genetic recombination helps in maintaining the Hardy-Weinberg Equilibrium."

### Final Answer
The wrong statement regarding the Hardy-Weinberg principle is: **Genetic recombination helps in maintaining the Hardy-Weinberg Equilibrium.**

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