Problem 2. Suppose we want to determine the expected frequency of alleles in a population. It is always easier to work from the known to the unknown….

Problem 2. Suppose we want to determine the expected frequency of alleles in a population. It is always easier to work from the known to the unknown. So, start with the observed phenotypes. Let us assume that hand preference (right or left handedness), is, in fact, a two allelic system. (This may not be the case, but let’s assume it true for this case.) So, those with a left hand preference have two recessive alleles (hh).  

           a. If we observe/survey our campus population and we observe that 75% of our subjects are right handed. What percent have homozygous recessive genotypes in our population?  (3 points)

           b. Determine the frequency of the left handed (recessive) allele. (Hint: take the answer from your answer to a, and plug it into the formula. Find the square root). (3 points)

           c.  What is the frequency of dominant alleles (H)? (Hint: 1 = the whole population, so subtract the answer you have in b from 1).  (3 points)

           d. Now plug the numbers you have into the formula and solve for the middle element, to establish the frequency of “2pq”  (aka the percent of heterozygotes or Hh in the population – remember, these are genotypes, made of two alleles).  (3 points)

           e.  This is a ‘steady – state’ (or ‘equilibrium’) in populations. This is a baseline, because, in fact, no populations remain in this state, because change occurs. What is this state called? What changes occur and how does this baseline help us to understand them?  (3 points) 

Show more

Calculate Your Essay Price
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more

Order your essay today and save 10% with the coupon code: best10