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Genetics Study Guide (Chapter 5) Test on April 1st (Wednesday) You need to know: 1. Vocabulary: karyotype, chromosome, heredity, allele, genetics, hybrid, dominant, recessive, Punnett square, homozygous (purebred), heterozygous (hybrid), genotype, phenotype, incomplete dominance (or codominance), pedigree 2. Make a genotype when given phenotype information. (RR, Rr, rr) 3. Describe the phenotype when give the genotype information. (homozygous right, heterozygous right, homozygous left) 4. Make a Punnett square and be able to determine the offspring percentages for traits. 5. Make a Punnett square for incomplete dominance (black, white, and gray chickens or red, white, and pink flowers). 6. Complete a Punnett square for blood types. (chart will be provided) 7. Be able to read a karyotype and determine what disease (if any) the child has and his or her gender. (there will be a chart of the diseases available) 8. What is a sex-linked disorder and how is it different from a regular trait or disorder? On which chromosome are the genes found? 9. Make a Punnett square for a sex-linked disorder. 10. What is a pedigree and how can you use one to track a disease or trait? 11. Be able to read it -identify relationships (mother/son, aunt/niece), the number of generations, and who does or does not have a disorder using a pedigree chart. Use Chapter 5, worksheets, power points, and handouts to help you prepare for the multiple choice and open ended questions test.