Hardy Weinburg Questions

Hi everyone

I just wanted to give you some help on the Hardy Weinburg homework problems.

1. In a population of 100 individuals 49% are of the NN blood type. What
percentage is expected to be MN assuming Hardy-Weinberg equilibrium?
A. 9%
B. 21%
C. 42%
D. 51%
E. insufficient information to answer question

OK, this one was a bit difficult because it is an example of codominance.

In this cause NN represents q squared.

So if q squared = .49, then if you take the square root of each side, q = .7

Remember that p + q = 1

So if q = .7 then p = .3

Now to figure out the heterozygous condition, you need to multiply using 2pq

So, 2(.7)(.3) = .42 or 42%

Fruit fly Free Response Questions

Please ask questions to the class about this assignment. I will help answer as needed.

-Emily

For Monday, February 23

HI everyone.

I am going to make announcements more regular so please check every day. Remember, you should be reading and studying AP Biology every day. We will be moving more quickly to get through as much material as we can over the next three months. THE READING IS NOW EASIER THAN PREVIOUS CHAPTERS, SO DO IT!!

• I want to make you aware of a great website that you can use to increase your understanding and exposure to AP Biology topics: http://www.ucopenaccess.org/course/view.php?id=8 (see assignment below)
  

Assignments - Week of 2/23

• Completed Population Genetics lab - due Monday 2/23
• Fruit fly data and free response question - please turn in ASAP (post questions to the blog)
• Go to http://www.ucopenaccess.org/course/view.php?id=8 and find Unit 5. Click on Play Media from lessons 22-24. Take notes!
  
• Reading: Chapter 17 and 18. Use the learning objectives to keep you focused and review questions to test yourself. Take notes from the chapters. THIS READING IS EASIER THAN PREVIOUS CHAPTERS, SO DO IT!!
• Chapter 17 and Chapter 18 powerpoints are posted on the assignments page
  

-Emily

Websites for cloning and cancer

Hey everyone,

Here are the websites with the stem cells, cloning and cancer websites!

Stem Cells

http://learn.genetics.utah.edu/content/tech/stemcells/

Cloning

http://learn.genetics.utah.edu/content/tech/cloning/

Cancer

http://science.education.nih.gov/supplements/nih1/cancer/activities/activity2_animations.htm