Question 11 (Population/Quantitative Genetics) A (dominant) and a (recessive) are alleles whose respective frequencies are p and q in a given interbreeding population at equilibrium. If 9 percent of the individuals in the population have recessive phenotypes, what is the percentage of heterozygous genotypes? 0.9% O 70% 42% O 91%
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- Change in allele frequency of a population is called ______ . a. macroevolution b. adaptive radiation c. inbreeding d. microevolution@ 2 W S Rehpogs are mythical creatures. They are small and not very smart. Rehpogs live on the ground in a flat, warm habitat. Their fur texture and color ranges from thick purple fur to thin pink fur, depending on allele distribution. The dominant fur allele (R) codes for thick purple fur. The recessive allele (r) codes for thin pink fur. REMEMBER: a phenotype (fur color) is the physical expression of a genotype (two- letter code for the alleles present in that individual). Each individual has two alleles for fur color: X RR genotype is homozygous dominant = Thick purple fur phenotype Rr genotype is heterozygous = Thick purple fur (because of the presence of one dominant allele) rr genotype is homozygous recessive = Thin pink fur (because of the absence of a dominant allele) For the purposes of this experiment, Rehpogs mate once per year and produce two offspring each year. Rehpogs are monogamous, faithful and fertile. # 3 e d C C $ 4 r f V % 5 t g Oll 6 b y h & 7 O 8 n JL u i j O L m…Тext 7. If 96 out of 200 individuals in a population express the recessive phenotype, what percent of the population are heterozygotes? 40% 8. A hypothetical population of 100,000 humans has 68,240 individuals with the blood type AA, 28,735 individuals with blood type AB and 3025 individuals with the blood type BB. a. What is the frequency of each genotype in this population? b. What is the frequency of the A allele? c. What is the frequency B allele? d. If the next generation contained 250,000 individuals, how many individuals would have blood type BB, assuming the population is in Hardy-Weinberg equilibrium?
- Amath 423 Homework #1.04 Blood Work Consider the following, hypothetical data for the genotypic frequen- cies associated with the A, B, AB, and O blood groups in a population: Genotype 14i Bi ii Frequency 0.1 0.3 0.1 0.1 0.1 0.3 (a) What will the genotypic frequencies be in the next generation, assum- ing random mating ? (b) At Hardy-Weinberg equilibrium, what is the probability that two per- sons, chosen at random, are of the same blood group ?Bikini Bottom Genetics Name Selentists at Bikini Bottoms have been investigating the genetic makeup of the organisms in this community. Use the Information provided and your knowledge of genetics to answer each question. 1. For each genotype below, indicate whether it is a heterozygous (He) OR homozygous (Ho). Ff bb TT- DD Bb dd Dd ff Tt BB. FF Which of the genotypes in #1 would be considered purebred? Which of the genotypes in #1 would be hybrids?. 2. Determine the phenotype for each genotype using the information provided about SpongeBob. Yellow body color is dominant to blue. Y, Yy yy Square shape is dominant to round. 3. For each phenotype, give the genotypes that are possible for Patrick. A tall head (T) is dominant to short (). Tall= Pink body color (P) is dominant to yellow (p). Short = Pink body =, Yellow body = 4. SpongeBob SquarePants recently met SpongeSusie Roundpants at a dance. SpongeBob is heterozygous for his square shape, but SpongeSusie is round. Create a Punnett…?action=Donresume&submissionld%3D459115049 Trait Dominant Allele Recessive Allele Body Color Brown (B) Albino (b) Back Stripe No Stripe(N) Stripe (n) Fill in the blanks (1-4) in the Punnett square below and answer the questions. Bn Bn Bn Bn bN BbNn BbNn BbNn bn Bbnn Bbnn Bbnn bN BbNn BbNn BbNn bn Bbnn Bbnn Bbnn For the next two questions below, fill in the allele(s) that you are looking for to determine the number of each type of traits specified. (HINT: Remember how many alleles do you need to have the dominant trait vs the recessive trait) How many gecko offspring will be brown and have a stripe? How many gecko offspring will be albino and have no stripe? What is the phenotype of the genotype BbNn? : B :: b :: N : BB :: Bb :: bb :: NN : Nn :: nn :: Brown and no stripe : Brown and a stripe : Albino and no stripe : Albino and a stripe : 0 :: 4 :: 6 :: 9 :: 8 : 12 :: 16 : BBNN :: BBNN : BBnn :: BBNN : BBN. : Bbnn : bbNN : bbNn :: bbnn
- 700 peak 1 600 500 400 300 200 3- 100 Peak 6 - Stripes Peak 7 Peak 5 Spur Length Petal Tips Peak 4 -Anthers Stigmas Blade Color Spur Color - Petal Color Peak 2 Peak 31 in 1700 US Caucasian newborns has cystic fibrosis, which is only present in individuals with the homozygous recessive genotype. Assuming the population is in Hardy Weinberg equilibrium, what is the allele frequency of the dominant allele in the population.14. In class we explored how genotype frequencies can change between generations. In our experiment, we started with a population in which every individual was heterozygous for a few traits of interest. The data for the 11 offspring of these heterozygotes are below. Make sure you show at least some work for partial credit. Frecueles Eje coloN Freckles Genotype FF Eye Shape Genotype EE Eye Color Genotype RR (P 3 (P 3 Ff 5 Ee .0.3 1-0.3 3 RB 7 ff 1 ее Phenotypes Freckles No freckles Phenotypes Phenotypes Red |-0.3 FF, Ff Circle EE, Ee RR Ro.HFF) ff Star ее Purple Blue RB or BR 20.42 BB a) What were the initial allele frequencies for freckles in the starting population? FF=0.42 b) What percentage of the starting population had purple eyes? c) What are the allele frequencies for freckles after one generation? (FF)P= 0.7 (FN 2pf=0.42 (fF) = 03 d) What percentage of the population had purple eyes after one generation? e) Are the genotype frequencies for eye shape what you would expect based…
- PDE Mendelian Genetics Fall20.pdf Observational Science Home Lab x + O File | C:/Users/Emera/Desktop/Mendelian%20Genetics%20Fall20.pdf Not syncing of 8 A' Read aloud | V Draw E Highlight O Erase 4 Cystic fibrosis is a fatal genetic disease that affects one child in 1,600. It is an autosomal recessive gene. Both parents are heterozygous for this trait. A10) What are the phenotypes of each parent? A11) In terms of alleles, what are the different gametes each parent can produce? A12) This couple has had three children without cystic fibrosis. If the couple has a fourth child, what is the probability that it will have the disorder? In humans, the dominant allele 'D' codes for deafness, and the recessive allele 'd' codes for normal hearing. The father is homozygous recessive and the mother is heterozygous. A13) Construct a Punnett square. A14) What is the phenotypic ratio of their offspring? What is the genotypic ratio of their offspring? Part B: Dihybrid Crosses What would result from a…ocesses/Se are the same se two trees are NOT the same At some point in the past, foxes arrived in the Arctic (far northern latitudes) and we able to establish a population. Now, there is a white population of foxes that lives there. Which of the following was the primary change that occurred gradually over time in the Arctic fox population, eventually resulting in foxes with white fur? O The fur color of each individual fox within the population gradually changed. O The frequencies of foxes with different fur colors within the population changed. O Mutations occurred to meet the need of the fox population in the new environment. O Foxes that survived longest gained white fur in their old age, which they passed on to their offspring, tion 151₁ F3 8 A = all of the dominant alleles for a particular trait in a specific population; a = all of the recessive alleles for a particular trait in a specific population In the following equations "A" is represented by "p" "a" is represented by "q" Hardy Weinberg equations: Allele distributions in Generation 1: 36 homozygous dominant individuals 13 heterozygous individuals 1 homozygous recessive individual Explanation of terminology: px p=p² There are 50 individuals in this particular population. We want to see if allele distributions change from generation to generation. We will use the Hardy Weinberg equations to find out. Due to migration and random mating of the parent generation, the percentage of homozygous recessive genotypes in Generation 2 offspring increases, changing_"a" to 40%, so a = 40 If "a" = .40, and "a"=q, then q = $ Remember that p + q = 1.0 If q, then p must = How many of these 50 offspring are homozygous dominant, heterozygous, or homozygous recessive? p² + 2pq+q²=…