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A population that contains 16% homozygous recessive individuals (blue eyes), and 84% individuals with brown eyes (homozygous dominant and heterozygotes). What is the frequency of the dominant allele in the population? If there were 1000 individuals and this population was in hardy Weinberg, how many individuals would have blue eyes? 1) IDENTIFY: Dominant Trait: ______________________ Dominant Allele: _______ Recessive Trait: ______________________ Recessive Allele: _______ 2) Identify Genotypes for: Homozygous Dominant: _____ _____ Heterozygous Dominant: _____ _____ Homozygous Recessive: _____ _____ 3) What 2 equations will you use? 4) Calculate frequencies: p = ___________ 2pq = ___________ q = ____________ q2 = ____________ p2 = ____________ WRITE ANSWERS TO QUESTIONS HERE: What is the frequency of the dominant allele in the population? If there were 1000 individuals and this population was in hardy Weinberg, how many individuals would have blue eyes? In Drosophila, the allele for red eye color is dominant over the allele for yellow eyes. In a population of 1,000 individuals, 320 show the recessive phenotype. What is the frequency of the recessive allele in the population? If there were 2000 individuals and the next generation and it remained in Hardy Weinberg, how many individuals would have red eyes? 1) IDENTIFY: Dominant Trait: ______________________ Dominant Allele: _______ Recessive Trait: ______________________ Recessive Allele: _______ 2) Identify Genotypes for: Homozygous Dominant: _____ _____ Heterozygous Dominant: _____ _____ Homozygous Recessive: _____ _____ 3) What 2 equations will you use? 4) Calculate frequencies: p = ___________ 2pq = ___________ q = ____________ q2 = ____________ p2 = ____________ WRITE ANSWERS TO QUESTIONS HERE: What is the frequency of the recessive allele in the population? If there were 2000 individuals and the next generation and it remained in Hardy Weinberg, how many individuals would have red eyes? In fruit flies, Drosophila melanogaster, the allele for normal-length wing is dominant over the allele for vestigial wings (vestigial wings are stubby little curl that cannot be used for flight). In a population of 2,000 individuals, 160 show the recessive phenotype. What is the frequency of the dominant allele in the population? What percent of individuals is heterozygous? 1) IDENTIFY: Dominant Trait: ______________________ Dominant Allele: _______ Recessive Trait: ______________________ Recessive Allele: _______ 2) Identify Genotypes for: Homozygous Dominant: _____ _____ Heterozygous Dominant: _____ _____ Homozygous Recessive: _____ _____ 3) What 2 equations will you use? 4) Calculate frequencies: p = ___________ 2pq = ___________ q = ____________ q2 = ____________ p2 = ____________ WRITE ANSWERS TO QUESTIONS HERE: What is the frequency of the dominant allele in the population? What percent of individuals is heterozygous? In a certain flock of sheep, 4 percent of the population has black wool and 96 percent has white wool. Assume that the population is in Hardy-Weinberg equilibrium. Black wool is a recessive trait. What percentage of the population is heterozygous for this trait? What percentage of the population is homozygous for white wool? 1) IDENTIFY: Dominant Trait: ______________________ Dominant Allele: _______ Recessive Trait: ______________________ Recessive Allele: _______ 2) Identify Genotypes for: Homozygous Dominant: _____ _____ Heterozygous Dominant: _____ _____ Homozygous Recessive: _____ _____ 3) What 2 equations will you use? 4) Calculate frequencies: p = ___________ 2pq = ___________ q = ____________ q2 = ____________ p2 = ____________ WRITE ANSWERS TO QUESTIONS HERE: What percentage of the population is heterozygous for this trait? What percentage of the population is homozygous for white wool? A moth's color is controlled by two alleles, G and g, at a single locus. G (gray) is dominant to g (white). individuals were collected for a population in Hardy Weinberg and the frequency of G was 0.2. 1000 What percentage of moths in the population are white ? If there were 2000 individuals and the next generation how many moths would be gray? 1) IDENTIFY: Dominant Trait: ______________________ Dominant Allele: _______ Recessive Trait: ______________________ Recessive Allele: _______ 2) Identify Genotypes for: Homozygous Dominant: _____ _____ Heterozygous Dominant: _____ _____ Homozygous Recessive: _____ _____ 3) What 2 equations will you use? 4) Calculate frequencies: p = ___________ 2pq = ___________ q = ____________ q2 = ____________ p2 = ____________ WRITE ANSWERS TO QUESTIONS HERE: What percentage of moths in the population are white ? If there were 2000 individuals and the next generation how many moths would be gray? In certain African countries 4% of the newborn babies have sickle-cell anemia, which is a recessive trait. Out of a random population of 1,000 newborn babies, how many would you expect to be heterozygous for this trait? What is the frequency of the recessive allele? 1) IDENTIFY: Dominant Trait: ______________________ Dominant Allele: _______ Recessive Trait: ______________________ Recessive Allele: _______ 2) Identify Genotypes for: Homozygous Dominant: _____ _____ Heterozygous Dominant: _____ _____ Homozygous Recessive: _____ _____ 3) What 2 equations will you use? 4) Calculate frequencies: p = ___________ 2pq = ___________ q = ____________ q2 = ____________ p2 = ____________ WRITE ANSWERS TO QUESTIONS HERE: What percentage of moths in the population are white ? If there were 2000 individuals and the next generation how many moths would be gray?
