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

Test Info!

hey, kidos!

Here are some fun study links!

http://www.sumanasinc.com/webcontent/animations/content/lacoperon.html

http://bcs.whfreeman.com/thelifewire/content/chp13/1302002.html

Test Topics: lac operon, trp operon, positive\negative control, gene regualtion in eukaryotic cells(TATA box, UPE enhancer), heterochromatin, euchromatin, methylation, and gene amplification.

Essay question will be to draw and explain the lac or trp operon

Enjoy!













poop.

Posting?

Are you all having trouble? I was hoping to start reading your posts.

WINTER ASSIGNMENT!

AP Biology Assignment – Winter Break

Your break assignment is to watch movies! OK, maybe not the movies you were hoping for, these are related to genetics and gene expression. After watching the films, you must submit a post to the blog about which films you chose and what you learned.

The first movie is called Epigenetics, which is about how our lifestyles and environment can change the way our genes are expressed, leading even identical twins to become distinct as they age. The video can be found at the following website: http://www.pbs.org/wgbh/nova/sciencenow/3411/02.html

I want you to pick two other short films from VCU’s video series, the Secrets of the Sequence. There are fifty different topics that you can choose from. Each of the videos is about 10 minutes long. The videos can be found at :

http://www.pubinfo.vcu.edu/secretsofthesequence/playlist_frame.asp

Instead of writing a paper, I want you to post a response on the AP Biology blog (http://openemilyapbio.blogspot.com/). For each of the three films you watch, describe the topic that you chose and what you learned, making sure to be specific about the genetic information and techniques described.

Then, pick two other students posts to read and comment on. You will be able to learn more by reading other student’s posts. Your post and your response to two other students’ posts must be completed by January 4 by 10PM.