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Heredity Practice Problems For each genotype below, CIRCLE whether it is heterozygous or homozygous. Then CIRCLE whether the dominant trait or the recessive trait will show up. 1. AA Heterozygous or Homozygous DOMINANT or recessive 2. bb Heterozygous or Homozygous DOMINANT or recessive 3. Cc Heterozygous or Homozygous DOMINANT or recessive 4. DD Heterozygous or Homozygous DOMINANT or recessive 5. Ee Heterozygous or Homozygous DOMINANT or recessive 6. ff Heterozygous or Homozygous DOMINANT or recessive For each of the genotypes below determine what phenotypes would be possible. Brown eyes are dominant to blue eyes Round seeds are dominant to wrinkled seeds. 7. BB brown or blue 10. RR round or wrinkled 8. Bb brown or blue 11. Rr round or wrinkled 9. bb brown or blue 12. rr round or wrinkled For each phenotype below, list the genotypes (2 letters/alleles). Straight (H) hair is dominant to curly (h). Pointed face (F) is dominant to round (f). 13. ____ straight 16. _____ pointed 14. ____ straight 17. _____ pointed 15. ____ curly 18. _____ round Set up the Punnett squares for each of the crosses listed below. Round seeds are dominant to wrinkled seeds. 19. Rr (top) x Rr (side) 20. What percentage of the offspring will be round? _______________ 21. What percentage of the offspring will be recessive? _______________ 22. What percentage of the offspring will be homozygous? _______________ 23. RR x rr 24. What percentage of the offspring will be dominate? _______________ 25. What percentage of the offspring will be recessive? _______________ 26. What percentage of the offspring will be heterozygous? _______________ 27. Rr x rr 28. What percentage of the offspring will be round? _______________ 29. What percentage of the offspring will be wrinkled? _______________ 30. What percentage of the offspring will be heterozygous? _______________ 31. RR x Rr 32. What percentage of the offspring will be round? _______________ 33. What percentage of the offspring will be wrinkled? _______________ 34. Define heredity _____________________________________________________________________________ __________________________________________________________________________________________ 35. Explain where genetic material is located in eukaryotic cells. (chromosome, nucleus, DNA, gene) __________ ____________ _________________ ________________ Eukaryotic Cells