1. Get out: Ch 12 notes Ch. 12 Review

2. Chapter 12.1 Pedigrees

6. Section 12.1 Summary – pages 309 - 314 Pedigrees illustrate inheritance Male Female Affected male Affected female Mating Parents Siblings Known heterozygotes for recessive allele Death

13. Remember :

19. Section 1 Check I II III IV 1 2 1 1 1 3 2 2 4 3 Question 1 What does this pedigree tell you about those who show the recessive phenotype for the disease?

20. Section 1 Check I II III IV 1 2 1 1 1 3 2 2 4 3 The pedigree indicates that showing the recessive phenotype for the disease is fatal.

21. Section 1 Check Question 2 What must happen for a person to show a recessive phenotype? Answer The person must inherit a recessive allele for the trait from both parents.

22. Section 1 Check I II III IV 1 2 1 1 1 3 2 2 4 3 Question 3 How many females are in this pedigree?

23. Section 1 Check I II III IV 1 2 1 1 1 3 2 2 4 3 Question 4 How many males are in this pedigree?

24. Section 1 Check I II III IV 1 2 1 1 1 3 2 2 4 3 Question 5 How many affected females are in this pedigree?

25. Section 1 Check I II III IV 1 2 1 1 1 3 2 2 4 3 Question 6 How many affected males are in this pedigree?

26. Section 1 Check I II III IV 1 2 1 1 1 3 2 2 4 3 Question 7 How many carriers are in this pedigree?

27. IV. Simple Recessive Heredity

31. Pedigree- Tay Sachs Disease

33. Section 12.1 Summary – pages 309 - 314 Phenylketonuria Phenylketonurics: Contains Phenylalanine

37. Pedigree- Huntington Disease

40. Chapter 12.2 & 12.3 notes When Heredity Follows Different Rules