HOW TO SOLVE HARDY-WEINBERG PROBLEMS Do Now: Copy the following problem solving steps into your notes: 1. 2. 3. 4. Find f(AA) or f(aa) from the information about the populations characteristics in the problem. Use f(AA) = P2 or f(aa) = Q2 to find P or Q. Use P + Q = 1 to find the other frequency. Find the genotype or phenotype frequencies asked for in the question by using
1. f(AA) = P2 2. f(Aa) = 2pq 3. f(aa) = Q2 What the terms mean
f(AA) = frequency of homozygous dominant individuals f(Aa) = frequency of heterozygous individuals f(aa) = frequency of homozygous recessive individuals. P = allele frequency of dominant allele Q = allele frequency of recessive allele Example Problem If 9% of an African population is born with a severe form of
sickle-cell anemia (ss), what percentage of the population will be more resistant to malaria because they are heterozygous(Ss) for the sickle-cell gene? Step 1: Find f(ss) We are told 9% of the population is ss, the homozygous recessive genotype.
Therefore, f(ss) = .09 Step 2: Find P or Q Since f(ss) = Q2 .09 = Q2 Q = .30 Step 3: Find the Other Frequency
Since P + Q = 1 P + .30 = 1 P = .70 Step 4: Find Unknown Phenotype or Genotype Frequency The question asks you to find the % of heterozygotes. Since f(Ss) = 2PQ
P = .70 Q = .30 f(Ss) = 2(.70)(.30) f(Ss) = .41 41% of the population is heterozygous (Ss) for the trait. Practice.
Complete the 2 practice problems Im here to help. Well go over them in a few minutes. Practice Problem 1: Pigeons Step 1: Find f(BB) or f(bb).
Since we know the red birds are recessive, we must solve for Q first (a blue bird may be BB or Bb) f(bb) = 2/50 = .04 Practice Problem 1: Pigeons Step 2: Find P or Q
Since we know f(bb) = .04, we can solve for Q f(bb) = Q2 .04 = Q2 Q = .20 Practice Problem 1: Pigeons Step 3: Find the other allele frequency
Since we know Q = .20, we can solve for P P+Q=1 P + .20 = 1 P = .80 Practice Problem 1: Pigeons Step 4: Find what the question asks
Since we know P = .80 and Q = .20, we can solve for f(Bb), the frequency of heterozygotes f(Bb) = 2PQ f(Bb) = 2(.80)(.20) f(Bb) = .32 32% of the pigeon population is heterozygous. Practice Problem 2: Dogs Step 1: Find f(BB) or f(bb).
We are given this step in the problem f(BB) = 15% = .15 Practice Problem 2: Dogs Step 2: Find P or Q
Since we know f(BB) = .15, we can solve for P f(BB) = P2 .15 = P2 P = .39 Practice Problem 2: Dogs Step 3: Find the other allele frequency
Since we know P = .39, we can solve for Q P+Q=1 .39 + Q = 1 Q = .61 Practice Problem 2: Dogs Step 4: Find what the question asks
Since we know P = .39 and Q = .61, we can solve for f(bb), the frequency of white dogs f(bb) = Q2 f(bb) = .612 f(bb) = .37 37% of the dogs are white (bb) Practice Problem 2: Dogs Step 4: Find what the question asks
Since we know P = .39 and Q = .61, we can solve for f(Bb), the frequency of spotted dogs f(Bb) = 2PQ f(Bb) = 2(.39)(.61) f(Bb) = .48 48% of the dogs are spotted (Bb)
Check If we add up the 3 percentages, we should get 100%: 15% black + 37% white + 48% spotted = 100% Sometimes, because of rounding to 2 decimal places, you may get a total of 99101% Homework
Complete the first 2 problems of the Hardy-Weinberg problem set.
Background Information. born on June 6, 1945 in Kittery, Maine. his family moved to Watertown, New York when he was still a child. Shawcross claims that his adolescence was rough, and says he had a difficult relationship with both parents...
Chapter 6: The Rise of Ancient Greece. The Parthenon in Athens. ... Minoans lived on island of Crete from 3000 BC - 1100 BC. Traded with mainland Greece as well as islands. Knossos - main city, origin of grand architecture...
Can we quantitatively relateLPO fabrics to deformation symmetry? ... And you can envision doing this for all of the orientations of rotation axes in the stereonet, and you can probably guess what the result will look like:   ...
Suspension of work/stop work notices. Standard form 30, block 13D applies. Cite the appropriate contract clause as authority. Unilateral Modifications Cont. Bilateral/ Supplemental Mods. Commercial Modification (Continued) IAW 52.212-4 (c) Changes. "Changes in the terms and conditions of this ...
Buckley v. Valeo Buckley v. Valeo, (1976), was a case in which the Supreme Court of the United States upheld a federal law which set limits on campaign contributions, but ruled that spending money to influence elections is a form...
SVM for regression analysis SV regression SVM for ranking Ranking SVM Idea For each order pair of instances (x1, x2) where x1 < x2 in ranking Generate a new instance <x1,x2,+1> Train an SVM on the new data set f(x,w,b)...
What is the UF VPN Client, and How Do I Use it? (for OS X users). ... Go to Finder Applications Cisco Cisco Anyconnect Secure Mobility Client.app. Double-click on the app icon How Do I Configure the UF VPN Client...
Ready to download the document? Go ahead and hit continue!