2. Genetics Study of heredity Mendel and pea plants Fertilization- sperm and egg join

3. Trait Ex. eye color, height Hybrids- crosses between parents are true-breeding types

5. Gene- sequence of DNA that codes for a specific trait Ex. Eye color Allele- version of a gene Ex. blue eye color Diploid organisms have two alleles

6. Types of Alleles Dominant Recessive

7.  Mendel’s Principle of Segregation: Two members of a gene pair segregate (separate) from each other during the formation of gametes. Animation of Segregation

8. Mendel’s Principle of Independent Assortment: Alleles for different traits assort independently of one another. Genes on different chromosomes behave independently in gamete production.

9. Diploid- 2 sets of chromosomes Haploid- 1 set of chromosomes -Gametes

10. Genotype Ex. BB Phenotype Ex. Brown eyes

11. Homozygous Heterozygous

12. Monohybrid cross

13. Dihybrid Cross

14. Genetics Laws Independent Assortment Segregation

15. Shape of Earlobe Recessive Dominant

16. Eye Color DominantRecessive

17. Shape of Hairline DominantRecessive

18. Tongue Roll DominantRecessive

19. Tongue Fold Recessive Dominant

20. Shape of Little Finger Recessive Dominant

21. Hair on Middle Joint Recessive Dominant

22. Hair Color Recessive Dominant Red Hair – Any shadeAny Other Color Hair

23. Hair Type Dominant Recessive

24. Eyelash Length Recessive Dominant

25. Number of Fingers Recessive Dominant

26. Cleft Chin Recessive Dominant

27. Dimples Dominant Recessive

28. Freckles Dominant Recessive

29. Hand Clasping Dominant Recessive 55% of People 45% of People