Find what you need to study
2 min read•december 17, 2021
Anusha Tekumulla
Anusha Tekumulla
The Hardy-Weinberg principle describes the characteristics of a population that is stable over time. In other words, the allele frequencies do not change from generation to generation. In order for a population to be stable and in Hardy-Weinberg Equilibrium, five conditions must be met:
The Hardy-Weinberg equation is important because it enables us to calculate the frequencies of alleles in a population. Scientists use the letter p to stand for the dominant allele and the letter q to stand for the recessive allele. The equation for Hardy-Weinberg is:
The basis of this equation is a monohybrid cross (Tt x Tt):
p^2 = TT (homozygous dominant)
Need a review on Punnet Square? Make sure to check out this 🎥 video on Mendelian and Non-Mendelian Genetics for help!
The Hardy-Weinberg equation is fairly easy to use if you are given the right information. To demonstrate how to use the equation, we will go through a sample problem.
If 9% of the population has blue eyes, what percent of the population is hybrid for brown eyes? Homozygous for blue eyes?
As you can see, using and understanding Hardy-Weinberg doesn't have to be confusing. If you are ever confused, consider talking to your teacher or chatting with us here at Fiveable. By following the simple steps provided, you'll be a Hardy-Weinberg expert in no time!
Wanting more information -- Check out this 🎥 Hardy-Weinberg video replay and this one covering 🎥 Hardy-Weinberg and Microevolution!
2 min read•december 17, 2021
Anusha Tekumulla
Anusha Tekumulla
The Hardy-Weinberg principle describes the characteristics of a population that is stable over time. In other words, the allele frequencies do not change from generation to generation. In order for a population to be stable and in Hardy-Weinberg Equilibrium, five conditions must be met:
The Hardy-Weinberg equation is important because it enables us to calculate the frequencies of alleles in a population. Scientists use the letter p to stand for the dominant allele and the letter q to stand for the recessive allele. The equation for Hardy-Weinberg is:
The basis of this equation is a monohybrid cross (Tt x Tt):
p^2 = TT (homozygous dominant)
Need a review on Punnet Square? Make sure to check out this 🎥 video on Mendelian and Non-Mendelian Genetics for help!
The Hardy-Weinberg equation is fairly easy to use if you are given the right information. To demonstrate how to use the equation, we will go through a sample problem.
If 9% of the population has blue eyes, what percent of the population is hybrid for brown eyes? Homozygous for blue eyes?
As you can see, using and understanding Hardy-Weinberg doesn't have to be confusing. If you are ever confused, consider talking to your teacher or chatting with us here at Fiveable. By following the simple steps provided, you'll be a Hardy-Weinberg expert in no time!
Wanting more information -- Check out this 🎥 Hardy-Weinberg video replay and this one covering 🎥 Hardy-Weinberg and Microevolution!
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.