Hardy weinberg rule
This presentation is the property of its rightful owner.
Sponsored Links
1 / 5

Hardy-Weinberg Rule PowerPoint PPT Presentation


  • 237 Views
  • Uploaded on
  • Presentation posted in: General

Hardy-Weinberg Rule. Allele frequencies when populations are NOT evolving. Hardy-Weinberg Rule. Allele frequencies will NOT change (stay in equilibrium) if the following conditions are met: No mutation Large population isolated from other populations of same species Random mating

Download Presentation

Hardy-Weinberg Rule

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Hardy weinberg rule

Hardy-Weinberg Rule

Allele frequencies when populations are NOT evolving


Hardy weinberg rule1

Hardy-Weinberg Rule

  • Allele frequencies will NOT change (stay in equilibrium) if the following conditions are met:

  • No mutation

  • Large population isolated from other populations of same species

  • Random mating

  • Individuals survive and reproduce equally


Hardy weinberg rule2

Hardy-Weinberg Rule

  • When would we want to know this info?

  • It provides a yardstick by which changes in allele frequency can be measured.

  • You can see if a population is evolving


Hardy weinberg rule3

Formula for the allele frequency is

p2 + 2pq + q2 = 1

P2 is AA

pq is Aa ( x 2 because aA also)

q2 is aa

You can use the formula to track alleles from one generation to the next to see if the gene frequencies are changing.

p= frequency of allele A

q= frequency of allele a

p+ q = 1

Hardy-Weinberg Rule


Hardy weinberg rule4

Hardy- Weinberg Rule

  • If you know the percent of homozygous recessive out of the total population, you know q2. Take the square root of it to find q. q is the frequency of a. Then you can find the rest.


  • Login