The hardyweinberg formulas allow scientists to determine whether evolution has occurred. They used the letter p to represent and a allele and the letter q to represent the a allele. 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. Ap biology hardyweinberg practice problems answer key. 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. Lab 8, population genetics and evolution monika guerra. Lab 8 genetics natalie cook ap biology population genetics. Quia prelab activity population genetics and evolution.
Genetic traits are determined by genes, or small segments of dna carried on chromosomes that determine physical characteristics. Based on your simulations answer the following questions. Laboratory 8 population genetics and evolution 3 hhs a. Due wednesday october 6, at the beginning of the lab. Download file pdf lab population genetics answers lab population genetics answers ap biology lab 8. Apbiology population genetics and evolution zygosity.
Lab eight population genetics and evolution answers author. 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. What percentage of the group has the selective advantage of being more. Population genetics and evolution lab eight the purpose of 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. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The hardyweinberg law of genetic equilibrium provides a mathematical model for. There is a great lab in the lab manual to accompany starr and taggart a. Buri followed his drosophila lines for 19 generations. The theory of evolution emphasizes that populations, not individuals, evolve. Students simulate some of the factors known to change allele frequencies and, thus, to drive evolution. Weinberg suggested a scheme whereby evolution could be viewed as changes in frequency of alleles in a population of organisms. For exercises 8b, 8c, and 8d and optional exercise 8e, draw table 8.
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. This learning exercise has 15 true or false, 6 fill in the blank, and 4 short answer questions. Continue reading lab 8 ap sample population genetics. Is evolution occurring with respect to a particular gene locus. The hardyweinberg law of genetic equilibrium provides a mathematical model for studying evolutionary changes in allelic frequency within a population. Scribd is the worlds largest social reading and publishing site. Population genetics lab answers kim foglia docsford. Hardyweinberg believed that evolution occurs because the frequency of alleles changes. Teachers manual laboratory 8 3 time requirements required knowledge expectations objectives preparation laboratory 8. The following link goes to population genetics and evolution lab eight which explores. Population genetics and evolution adapted from the 2001 student lab manual purpose. In this scheme, if a and a are alleles for a particular gene locus and each diploid individual. File type pdf lab population genetics answers lab population genetics answers lab 8 population genetics introduction g. Weinberg developed a theory that evolution could be described as a change of the frequency of alleles in an entire population.
Cystic fibrosis is a recessive condition that affects about 1 in 2,500 babies. Answer the following questions as you complete the labbench activity for lab 8 population genetics. To see how the genetics of populations can be modeled using hardyweinberg population genetics. In a certain group of african people, 4 percent are born with sickle cell anemia. Genetic traits are determined by genes, or small segments of dna carried on. Eight males and eight females 32 alleles, chosen at random, were used to start each subsequent generation.
Stay connected to your students with prezi video, now in microsoft teams. Introduction mendelian genetics see text for details deals with inheritance among individuals or small. Ptc test paper, paper, and pencil exercise 8a procedures. The concept of describing frequencies of inherited traits owes its origin to scientific works published at the beginning of the 20th century. Learn quiz population genetics biology lab with free interactive flashcards. Population genetics and evolution objectives required knowledge background expectations.
Ap biology laboratory 8 population genetics and evolution objectives estimate the frequency of alleles in a population using hardyweinberg equations. They will demonstrate the stability of allele frequencies over five generations in an. In this laboratory, you will apply this model by using your class as a sample population. Ap biology laboratory 8 population genetics and evolution. What genetic factors must be occurring for a hardyweinberg equilibrium to exist. Lab 8 lab eight population genetics and evolution lindle 1. Mar 08, 2009 ok, so this is a little confusing, but my class did this lab using the hardyweinberg equilibrium. This lab used a class as a sample population in a simulation of mating events to generate. 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. Ap biology hardyweinberg practice problems answer key 1. Using the ptc taste test papers provided, tear off a short strip and press it to your tounge tip. The population as the basic unit of evolution population evolves because the frequency of its features changes. Hardy weinberg believed that evolution occurs because the frequency of alleles changes. 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 module 1, you identified which species of lizards were most similar to one another based on relative limb length and toe pad size. The color of the irises in the fhbs are prominent and fluctuate between two colors. In a population of the flying howler bears there is a very specific trait that sticks out. Other results for lab 8 population genetics and evolution answer key. Monika guerra biology 1407 february 1, 2017 entire class title. This model is an agentbased population genetics simulation. Population genetics and evolution association for biology. Ap biology lab 8 population genetics and evolution pdf. Ap lab 8 population genetics and evolution introduction. In a diploid organism that has gene a gene loci that each contain one of two alleles for a. To use a data set that reflects a change in the genetic makeup of a population over time and to apply mathematical methods and conceptual understandings to investigate the.
Ap biology lab eight population genetics evolution answers author. Ok, so this is a little confusing, but my class did this lab using the hardyweinberg equilibrium. Conditions for maintaining hardyweinberg equilibrium. Apbiology population genetics and evolution free download as word doc. Lab eight population genetics and evolution answers keywords. 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. Read online lab 8 ap biology answers lab 8 ap biology answers ap biology lab 8. Biology lab 8 population genetics and evolution by mrs. I was attempting to use the hardyweinberg equation and determine if it was applicable to our conditions. The purpose of this simulation is to provide an opportunity to test some of the basic tenets of population genetics and evolutionary biology. Data collection for the class is best performed by asking for a show of hands.
Feb 14, 2008 lab eight population genetics and evolution. You have sampled a population in which you know that the percentage of the homozygous recessive genotype aa is 36%. Estimating allele frequencies with the hardyweinberg equations. Most biologists define evolution as a change in allele frequencies in a population over time. Weinberg both came up with the idea that evolution could be viewed as changes in the frequency of alleles in a population. Biology laboratory education able disclaims any liability with regards to safety in connection with the. In this module, you determined which lizards are more similar to one another based on what type of information. Chapter 8 an introduction to population genetics association for. To see the effects of various deviations from the hardyweinberg assumptions on the allele frequencies of a population microevolution.
How genetic drift, selection and the heterozygote advantage affect hardy weinberg equilibrium. Andersen explains hardyweinberg equilibrium and describes the bead lab. 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. The hardyweinberg equationscan be applied to estimate the frequencies of specified alleles within a population at any given time. Hw population genetics lab how to use hardyweinberg equations for the lab. Choose from 500 different sets of quiz population genetics biology lab flashcards on quizlet. Lab 8 ap sample population genetics biology junction. Four of the sixteen individuals show the recessive phenotype, so. How genetic drift, selection and the heterozygote advantage affect hardy. View lab report lab 8, population genetics and evolution from biology 1407 at harlingen h s south. Weinberg developed a theory that evolution could be described as a change of the frequency of.
1619 742 1312 1319 1005 836 624 1171 681 85 1080 571 1392 793 1272 264 723 1484 1208 863 419 221 1439 446 1309 286 984 1541 645 839 760 355 1247 109 809 959 1133 710 297 874