{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Concepts from Lecture 20

Concepts from Lecture 20 - equilibrium 1 2 3 4 5...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
What are the conditions that must be met for a population to be in Hardy‐Weinberg equilibrium? 1. Random mating 2. No Mutation 3. No Gene flow 4. Extremely large population 5. No Natural Selection HW is a simple model – we use it as a Null model –which is to say it is our initial hypothesis that allele and genotype frequencies are not changing. If they are changing, then we look at these different factors as ways to explain why it is changing. Violations of the first conditions are considered Neutral evolutionary changes which is basically that there is NO Natural Selection but instead just neutral demographic processes. HW equilibrium is the state where the allele frequencies and genotype frequencies stay the same. This doesn’t mean the allele frequencies or genotype frequencies are all equal, just that they don’t change from generation to generation. Random mating – every individual has equal and independent chance of mating of an individual of opposite sex. So the probability that any male and any female would mate is just 1 / (Num Males) * 1 / ( Num Females). So if there are 12 males and 16 females, the chance of any particular male – female mating is 1 / 12 * 1 / 16.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern