Which one of the following is NOT a condition of Hardy-Weinberg equilibrium? A. no natural selection B. random mating C. no mutations D. a small population

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**Understanding Hardy-Weinberg Equilibrium**  

In the study of population genetics, the Hardy-Weinberg equilibrium is a fundamental concept that provides the basis for understanding how genetic variation is maintained in a population under ideal conditions. This principle states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. The conditions required for a population to be in Hardy-Weinberg equilibrium are:

A. **No natural selection**
B. **Random mating**
C. **No mutations**
D. **Large population size**

**Quiz Question:**

Which one of the following is NOT a condition of Hardy-Weinberg equilibrium?

A. no natural selection  
B. random mating  
C. no mutations  
D. a small population  

**Answer Explanation:**

The correct answer is D. a small population.

In Hardy-Weinberg equilibrium, a large population size is essential to prevent genetic drift, which is the random fluctuation of allele frequencies that has a more pronounced effect in small populations. Therefore, a small population is not a condition for Hardy-Weinberg equilibrium.

**Further Reading:**

To delve deeper into the Hardy-Weinberg equilibrium and its applications, consider exploring topics such as the effects of genetic drift, the impact of selection pressures, and models of non-random mating. These factors can significantly influence allele frequencies over time and lead to deviations from the equilibrium state.

This material was provided by the International Academy of Science and reflects our ongoing commitment to providing accurate and engaging educational content. For more in-depth resources, explore our advanced genetics courses and interactive modules available on our platform.

---

**Note:** This overview does not include any diagrams or graphs. For a visual representation of the Hardy-Weinberg principle, see our advanced learning resources section which contains charts depicting allele frequency changes over time under different evolutionary scenarios. 

© 2003-2022 International Academy of Science. All Rights Reserved.
Transcribed Image Text:**Understanding Hardy-Weinberg Equilibrium** In the study of population genetics, the Hardy-Weinberg equilibrium is a fundamental concept that provides the basis for understanding how genetic variation is maintained in a population under ideal conditions. This principle states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. The conditions required for a population to be in Hardy-Weinberg equilibrium are: A. **No natural selection** B. **Random mating** C. **No mutations** D. **Large population size** **Quiz Question:** Which one of the following is NOT a condition of Hardy-Weinberg equilibrium? A. no natural selection B. random mating C. no mutations D. a small population **Answer Explanation:** The correct answer is D. a small population. In Hardy-Weinberg equilibrium, a large population size is essential to prevent genetic drift, which is the random fluctuation of allele frequencies that has a more pronounced effect in small populations. Therefore, a small population is not a condition for Hardy-Weinberg equilibrium. **Further Reading:** To delve deeper into the Hardy-Weinberg equilibrium and its applications, consider exploring topics such as the effects of genetic drift, the impact of selection pressures, and models of non-random mating. These factors can significantly influence allele frequencies over time and lead to deviations from the equilibrium state. This material was provided by the International Academy of Science and reflects our ongoing commitment to providing accurate and engaging educational content. For more in-depth resources, explore our advanced genetics courses and interactive modules available on our platform. --- **Note:** This overview does not include any diagrams or graphs. For a visual representation of the Hardy-Weinberg principle, see our advanced learning resources section which contains charts depicting allele frequency changes over time under different evolutionary scenarios. © 2003-2022 International Academy of Science. All Rights Reserved.
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