Property of Shane Johnson Lesson 1 Assessments 1 Vocabulary Quiz Name ____________ Directions: Block _________ Select a term from the word bank that is a match for each definition. WORD BANK Protein Enzyme Heterozygous Hybrid Recessive Homozygous Genotype Alleles Dominant 1. A ______________ is a large, complex polymer essential to all life composed of Carbon, Nitrogen, Hydrogen, Oxygen, and sometimes Sulfur. 2. Type of protein found in all living things that changes the rate of chemical reactions is a ______________. 3. The offspring formed by parents having different forms of a trait is called a _________. 4. ___________ are the alternative forms of a gene for each variation of a trait in an organism. 5. The observed trait of an organism that masks the recessive form of that trait is called ___________. 6. Phenotype_____________ is the outward appearance of an organism, regardless of its genes. 7. The trait of an organism that can be masked by the dominant form of a trait is called ____________. 8. The term for when there are two identical alleles for a trait is _____________. 9. The combination of genes in an organism is called its ______________. 10. The term for when there are two different alleles for a trait is _____________. Property of Shane Johnson Lesson 1 Assessment 2 Mountain Lion Punnett Square Practice Please complete the following Punnett Squares. Then Calculate the percentage of dominant and recessive offspring. GENOTYPE = PHENOTYPE Key P = Large paws || p= Small Paws PP or pp = homozygous || Pp= Heterozygous 1. PP x pp Number of Dominant offspring ______ Number of Recessive offspring _____ Number of Homozygous offspring ______ Number of Heterozygous offspring ______ Calculate the Percentage of Dominant offspring below: Calculate the Percentage of Recessive offspring below: 2. Pp x Pp Number of Dominant offspring ______ Number of Recessive offspring _____ Number of Homozygous offspring ______ Number of Heterozygous offspring ______ Calculate the Percentage of Dominant offspring below: Calculate the Percentage of Recessive offspring below: Property of Shane Johnson Lesson 2 Assessment 1 Name _________________ Block __________ Kermode Bear Population Calculation Directions: Please identify the genotype and phenotype of your three Kermode Bear parent pairs in the Table below. Then, begin completing the Punnett squares for questions 1 through 3 to determine the Bear Parent Pairs’ offspring. When done, calculate the percentage of dominant and recessive offspring resulting from each cross. Bear Mother Mother Father Father Parent Pair Genotype Phenotype Genotype Phenotype 1 2 3 Example: BB x BB Mother Genotype BB Father BB Genotype B B B B Punnett SQUARE STEPS 1. Fill in the parent generation Genotypes 2. Multiply them in the corresponding boxes 3. Record the number of Homozygous, Heterozygous, Dominant and Recessive offspring 2 by 4 4 Property of Shane Johnson Lesson 2 Assessment 2 1. Bear Parent Pair 1 Number of Dominant offspring ______ Number of Recessive offspring _____ Number of Homozygous offspring ______ Number of Heterozygous offspring ______ Calculate the Percentage of Dominant and Recessive offspring below: 2. Bear Parent Pair 2 Number of Dominant offspring ______ Number of Recessive offspring _____ Number of Homozygous offspring ______ Number of Heterozygous offspring ______ Calculate the Percentage of Dominant and Recessive offspring below: 3. Bear Parent Pair 3 Number of Dominant offspring ______ Number of Recessive offspring _____ Number of Homozygous offspring ______ Number of Heterozygous offspring ______ Calculate the Percentage of Dominant and Recessive offspring below: Property of Shane Johnson Lesson 2 Assessment 3 Answer KEY: Kermode Bear Activity Each group will complete the square for 3 different cities (rotate the envelopes) 1. BB x bb Kitimat ( human population 8,335) Percentages of offspring: 100 % Dominant 0% Recessive 100% Heterozygous 0% Homozygous Number of Offspring: 4 Dominant 0 Recessive 4 Heterozygous 0 Homozygous B B b Bb Bb b Bb Bb 2. Bb x Bb Powell River ( human population 13,175) Percentages of offspring: 75 % Dominant 25 % Recessive 50 % Heterozygous 25 % Homozygous dominant 25% Homozygous recessive Number of Offspring: 3 Dominant 1 Recessive 2 Heterozygous 2 Homozygous B b B BB Bb b Bb bb 3. bb x bb Hazelton (human population 293) Percentages of offspring: 0 % Dominant 100% Recessive 0 % Heterozygous 100 % Homozygous dominant 0% Homozygous recessive Number of Offspring: 0 Dominant 4 Recessive 0 Heterozygous 4 Homozygous b b b bb bb b bb bb 4. BB x Bb Courtenay (human population 40,809) Percentages of offspring: 100 % Dominant 0% Recessive 50 % Heterozygous 50 % Homozygous dominant 0% Homozygous recessive Number of Offspring: 4 Dominant 0 Recessive 2 Heterozygous 2 Homozygous B b B BB Bb B BB Bb 5. bb x Bb Prince Rupert (human population 12,508) Percentages of offspring: 50 % Dominant 50% Recessive 50 % Heterozygous 0 % Homozygous dominant 50% Homozygous recessive Number of Offspring: 2 Dominant 2 Recessive 2 Heterozygous 2 Homozygous B b b Bb bb b Bb bb 6. BB x BB Vancouver (human population 2,135,201) Percentages of offspring: 100 % Dominant 0% Recessive 0 % Heterozygous 100 % Homozygous dominant 0% Homozygous recessive Number of Offspring: 4 Dominant 0 Recessive 0 Heterozygous 4 Homozygous B B B BB BB B BB BB Property of Shane Johnson Lesson 3 Assessment 1 Conclusion Questions Answer the questions below in full sentences, at least 10 words long. Please remember to write using proper grammar and spelling. 1. Based off the evidence that you collected yesterday, how do you think this trait may have arose? Choose one of the following options that we went over in class and defend your reasoning. 2. Based on the human populations of Vancouver and Hazelton, account for the populations of Kermode Bears in each of these areas? What factors cause the population sizes of Kermode Bears in each city? (use the compare and contrast worksheets) 3. Please list some of the advantages and disadvantages of the Kermodism recessive gene? Also, consider what defines a recessive trait. Sentence frame: “An advantage of being a Kermode bear is ____ because of ____.”