What are the expected genotypic frequencies

1. Which of the following population(s) is/are in Hardy-Weinberg equilibrium? What are the expected genotypic frequencies for those populations that are not in equilibrium? How long will it take for these equilibrium values to be reached under random mating?


Don't use plagiarized sources. Get Your Custom Essay on
What are the expected genotypic frequencies
Just from $13/Page
Order Essay


















2. In polled cattle a shapeless, horny growth sometimes develops where the horns would normally be located. This condition, called scurs, appears to be controlled by a gene with two alleles (S and S’) acting in a sex-influenced manner. The allele causing scurs (S’) acts as a dominant in males and as a recessive in females. That is, SS in both sexes is normal, and S’S’ in both sexes is scurred, while SS’ is scurred in males but normal in females. Assume i.) in a herd of 236 polled cows (females), that four of the cows had scurs, and ii.) that the herd is in Hardy-Weinberg equilibrium.

a. What is the frequency of the scur allele (S’) in this population of cows?

b. How many cows in this population of 236 polled cows are expected to be heterozygous for the scur trait?

c. If 100 of the next 236 calves were bull calves, how many bull calves would you expect to eventually develop scurs?

3. Assume you are selecting individuals in your dairy herd as breeding stock. If the current herd production is 15,000 lbs milk / lactation, the average of the selected individuals is16,500 lbs milk / lactation, and the heritability (narrow sense) is 0.30, what is the expected milk production for the offspring of these selected parents?

Place your order
(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.

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.

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.

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.

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.