This lab used a class as a sample population in a simulation of mating events to generate. Ap lab 8 population genetics and evolution introduction. Since evolution is difficult if not impossible to observe in most natural populations, we will model the evolutionary process using the class as a simulated population. In a diploid organism that has gene a gene loci that each contain one of two alleles for a single trait t the frequency of continue reading lab 8 sample2 ap population genetics. This is a lab constructed by the college board and is part of the twelve labs all ap bio students do. Eight males and eight females 32 alleles, chosen at random, were used to start each subsequent generation. The theory of evolution emphasizes that populations, not individuals, evolve. Population genetics and evolution association for biology. Ap biology laboratory 8 population genetics and evolution objectives estimate the frequency of alleles in a population using hardyweinberg equations. You have sampled a population in which you know that the percentage of the homozygous recessive genotype aa is 36%.
They will demonstrate the stability of allele frequencies over five generations in an. This lab will allow for the exploration of the hardyweinberg law of genetic equilibrium in depth by studying the relationship between evolution and changes in allele frequencies in a sample population, the class. Read online lab 8 ap biology answers lab 8 ap biology answers ap biology lab 8. Download file pdf lab population genetics answers lab population genetics answers ap biology lab 8. Four of the sixteen individuals show the recessive phenotype, so.
In a certain group of african people, 4 percent are born with sickle cell anemia. In this scheme, if a and a are alleles for a particular gene locus and each diploid individual. Molecular biology paul andersen explains the two major portions of the molecular biology lab in ap biology. Data collection for the class is best performed by asking for a show of hands. Choose from 500 different sets of quiz population genetics biology lab flashcards on quizlet. Population genetics and evolution objectives required knowledge background expectations. The following link goes to population genetics and evolution lab eight which explores. Demonstrate that allele frequencies can change in a population over time. Cystic fibrosis is a recessive condition that affects about 1 in 2,500 babies.
To see how the genetics of populations can be modeled using hardyweinberg population genetics. The color of the irises in the fhbs are prominent and fluctuate between two colors. Before beginning the activity, answer the following general hardyweinberg problems for practice. Feb 14, 2008 lab eight population genetics and evolution. Ap biology lab 8 population genetics and evolution pdf. Lab 8 lab eight population genetics and evolution lindle 1. Genetic traits are determined by genes, or small segments of dna carried on chromosomes that determine physical characteristics. Population genetics lab answers kim foglia docsford. Lab eight population genetics and evolution answers author. Hw population genetics lab how to use hardyweinberg equations for the lab. Scribd is the worlds largest social reading and publishing site.
Students simulate some of the factors known to change allele frequencies and, thus, to drive evolution. The hardyweinberg equationscan be applied to estimate the frequencies of specified alleles within a population at any given time. Lab eight population genetics and evolution answers keywords. Lab 8 ap sample population genetics biology junction. Ap biology laboratory 8 population genetics and evolution. This model is an agentbased population genetics simulation. Stay connected to your students with prezi video, now in microsoft teams. Apbiology population genetics and evolution free download as word doc. Ap biology lab eight population genetics evolution answers author.
Continue reading lab 8 ap sample population genetics. Answer the following questions as you complete the labbench activity for lab 8 population genetics. The concept of describing frequencies of inherited traits owes its origin to scientific works published at the beginning of the 20th century. A very large population of randomlymating laboratory mice contains 35% white mice. Introduction mendelian genetics see text for details deals with inheritance among individuals or small. Biology laboratory education able disclaims any liability with regards to safety in connection with the. The hardyweinberg formulas allow scientists to determine whether evolution has occurred. Hardy weinberg believed that evolution occurs because the frequency of alleles changes. Andersen explains hardyweinberg equilibrium and describes the bead lab. Most biologists define evolution as a change in allele frequencies in a population over time. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Population genetics and evolution youmust know the hardyweinberg equation and be able to use it to determine the fre quency of alleles in a population.
Ptc test paper, paper, and pencil exercise 8a procedures. Hardyweinberg believed that evolution occurs because the frequency of alleles changes. To see the effects of various deviations from the hardyweinberg assumptions on the allele frequencies of a population microevolution. Read book lab 8 hardy weinberg problems answers equations can be used hardyweinberg equilibrium germanna community college this is a lab constructed by the college board and is part of the twelve labs all ap bio students do. Monika guerra biology 1407 february 1, 2017 entire class title. Choose at random 3 fish from the ocean and add them to your population. In this evolution learning exercise, students will answer questions about population genetics and the theory of evolution of species. Biology lab 8 population genetics and evolution by mrs. We were given genotypes that we split up into cards we all started as aa and had two a cards and two a cards, and then we mated with people, and we shuffled our cards and put down two randomly. The hardyweinberg law of genetic equilibrium provides a mathematical model for. Apbiology population genetics and evolution zygosity. They used the letter p to represent and a allele and the letter q to represent the a allele. Is evolution occurring with respect to a particular gene locus.
Laboratory 8 population genetics and evolution 3 hhs a. Ap biology hardyweinberg practice problems answer key. This learning exercise has 15 true or false, 6 fill in the blank, and 4 short answer questions. View lab report lab 8, population genetics and evolution from biology 1407 at harlingen h s south. Due wednesday october 6, at the beginning of the lab. Weinberg developed a theory that evolution could be described as a change of the frequency of. In this module, you determined which lizards are more similar to one another based on what type of information. Other results for lab 8 population genetics and evolution answer key. Weinberg developed a theory that evolution could be described as a change of the frequency of alleles in an entire population. How genetic drift, selection and the heterozygote advantage affect hardy. The purpose of this simulation is to provide an opportunity to test some of the basic tenets of population genetics and evolutionary biology. I was attempting to use the hardyweinberg equation and determine if it was applicable to our conditions. Prezi s director of product marketing on working from home and finding balance.
Allele frequencies became more evenly distributed from 0 to 1, with many populations losing or fixing the bw 75 allele and vice versa for the other allele. Learn quiz population genetics biology lab with free interactive flashcards. There is a great lab in the lab manual to accompany starr and taggart a. The program contains the tools to conduct virtual experiments violating all the assumptions of hardyweinberg theory small population, selection, mutation, migration, and nonrandom mating. Based on your simulations answer the following questions. Lab 8, population genetics and evolution monika guerra. Mar 08, 2009 ok, so this is a little confusing, but my class did this lab using the hardyweinberg equilibrium. File type pdf lab population genetics answers lab population genetics answers lab 8 population genetics introduction g. In module 1, you identified which species of lizards were most similar to one another based on relative limb length and toe pad size. Weinberg both came up with the idea that evolution could be viewed as changes in the frequency of alleles in a population. In a diploid organism that has gene a gene loci that each contain one of two alleles for a.
Population genetics and evolution adapted from the 2001 student lab manual purpose. The hardyweinberg law of genetic equilibrium provides a mathematical model for studying evolutionary changes in allelic frequency within a population. Genetic traits are determined by genes, or small segments of dna carried on. Chapter 8 an introduction to population genetics association for. Estimating allele frequencies with the hardyweinberg equations.
Buri followed his drosophila lines for 19 generations. The population as the basic unit of evolution population evolves because the frequency of its features changes. Quia prelab activity population genetics and evolution. Lab eight population genetics and evolution lindle 1 introduction. Case studies case i a test of an ideal hardyweinberg population you as a class will become a population of randomly mating heterozygous individuals with an initial gene frequency of 0. Ap biology hardyweinberg practice problems answer key 1. Lab 8 genetics natalie cook ap biology population genetics. Population genetics and evolution lab eight the purpose of population. Lab eight population genetics and evolution answers. What genetic factors must be occurring for a hardyweinberg equilibrium to exist. Population genetics and evolution lab eight the purpose of population genetics and evolution is to study the effects that changing a condition has on hardyweinberg equilibrium.
What percentage of the group has the selective advantage of being more. Using the ptc taste test papers provided, tear off a short strip and press it to your tounge tip. Conditions for maintaining hardyweinberg equilibrium. Ok, so this is a little confusing, but my class did this lab using the hardyweinberg equilibrium. Weinberg suggested a scheme whereby evolution could be viewed as changes in frequency of alleles in a population of organisms. How genetic drift, selection and the heterozygote advantage affect hardy weinberg equilibrium. For exercises 8b, 8c, and 8d and optional exercise 8e, draw table 8. In a population of the flying howler bears there is a very specific trait that sticks out.
191 357 163 82 1249 13 528 407 1430 518 1026 1127 300 322 722 505 182 757 1408 1119 125 110 1374 918 835 1182 767 421 931 133 867 1236