Genetics w Quahog
Genetics w Quahog
Genetics w Quahog
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QUAHOG GENETICSThe Griffin Family and other residents on Spooner Street have been investigating the geneticmakeup of the citizens of <strong>Quahog</strong>. Use the information provided and your knowledge ofgenetics to answer each question.1. For each genotype below, indicate whether it is a heterozygous (He) OR homozygous (Ho).TT _____ Bb _____ DD _____ Ff _____ tt _____ dd _____Dd _____ ff _____ Tt _____ bb _____ BB _____ FF _____Which of the genotypes in #1 are considered purebred? __________________________Which of the genotypes in #1 are hybrids? _____________________________________2. Determine the phenotype for each genotype using the information provided about Stewie.American accent is dominant to British.AA _____________ Aa _____________ aa _______________Round face shape is dominant to football shape.FF _____________ Ff ______________ ff ________________3. For each phenotype, give all the possible genotypes for Meg.Brown hair (H) is dominant to blonde (h).Brown = ___________________ Blonde = __________________Glasses (G) is dominant to no glasses (g).Glasses = __________________ No Glasses = ______________4. Joe met Bonnie at the <strong>Quahog</strong> Festival. Joe is heterozygous for his gigantic jaw, but Bonniehas a small jaw. Create a Punnett square to show the possibilities that would result whenJoe and Bonnie have children.A. List the possible genotypes and phenotypes for their baby girl.B. What are the chances of a child with a gigantic jaw?____ out of ____ or ____%C. What are the chances of a child with a small jaw?___ _______ out of ____ or ____%____
QUAHOG GENETICS5. Quagmire proposed to Peter’s maid. Both of them areheterozygous for their dark hair color, which is dominant over alight color. Create a Punnett square to show the possibilities thatwould result if Quagmire and Peter’s maid had children.A. List the possible genotypes and___ ___phenotypes for their children.B. What are the chances of a child with dark hair color?______ out of ____ or ____%C. What are the chances of a child with light hair color?______ out of ____ or ____%6. Everyone in Brian’s dog family has white fur, which is thedominant trait for fur color in his hometown. His dog familybrags that they are a “purebred” line. He recently married anice girl with light gray fur, a recessive trait. Create a Punnettsquare to show the possibilities that would result if Brian andhis new bride had puppies. Use F to represent the dominantgene and f to represent the recessive gene.A. List the possible genotypes and phenotypes for their children.B. What are the chances of a child with white fur? ____%C. What are the chances of a child with gray fur? ____%D. Would Brian’s children be considered purebreds?Explain!__________7. Assume that one of Brian’s sons, who is heterozygous for white fur, married a girl that wasalso heterozygous. Create a Punnett square to show the possibilities that would result ifthey had children.A. List the possible genotypes and phenotypes for theirchildren.B. What are the chances of a child with white fur? ____%___ ___C. What are the chances of a child with gray fur? ____% ____
QUAHOG GENETICS8. Cleveland and his new wife Donna recently had a baby, but it has not been ahappy occasion for them. Donna has been upset since she first saw her newbaby who had short digits (fingers and toes).___ ___ She claims that the hospital goofed and mixedup her baby with someone else’s baby.__Cleveland is homozygous for his long digits,while his wife is heterozygous for her long__digits. Some members of her family have shortdigits, which is the recessive trait. Create a Punnett squareusing D for the dominant gene and d for the recessive one.A. List the possible genotypes and phenotypes for their children.B. Did the hospital make a mistake? Explain your answer.