1. Genetics Review

2. Who established modern Genetics? (aka Father of Genetics) Gregor Mendel

3. What do geneticists call a genetic cross made to study a single trait? Monohybrid Cross

4. What are distinctive forms of a gene called? Alleles

5. What is any characteristic passed from parent to offspring? A Trait

6. An organism that receives different alleles from both parents is a__________ Hybrid

7. A punnett square represents the phenotype of an organism. T or F False

8. How do we represent the allele for a recessive trait? Lowercase letter

9. How do we represent the allele for a recessive trait? Lowercase letter

10. A section of a chromosome that codes for a trait is a Gene

11. What is the likelihood that a particular event will occur? Probability

12. Which law states that gene pairs separate from each other during meiosis? Law of segregation

13. If a male organism has the genotype AABBCCDD and is crossed with a female with aabbccdd, what would all of their offspring's genotypes be? AaBbCcDd

14. If all the offspring peas in a cross are Rr, then what were the parent’s genotypes RR x rr

15. What is the genetic makeup of an organism called? Genotype

16. The branch of Biology that deals with heredity Genetics

17. Write a genotype for a homozygous recessive trait. rr

18. Passing of traits from parent to offspring Heredity

19. An allele that expresses itself in a hybrid is a(n)_________. Dominant allele

20. Offspring of the P generation F1 generation

21. What is the genotypic probability of a cross between Bb and Bb? 1BB:2Bb:1bb 25%BB:50%Bb:25%bb ¼ BB: ½ Bb: ¼ bb

22. Reasons Mendel studied peas Rapid reproduction Easy to cross pollinate Distinctive traits Easy to grow

23. Offspring of the F1 generation F2 generation

24. Write a genotype for a heterozygous trait. Rr

25. Dominant is to Recessive as Heterozygous is to Homozygous

26. How can we represent Probability? Ratio Fraction Percentage

27. A person with brown eyes allele(B) and a blue eye allele (b)has brown eye because of which law? Law of Dominance

28. Write the genotypes for a cross between two heterozygous individuals for a single trait. Gg X Gg

29. In Rabbits Black fur (B) is dominant to Brown fur (b) 12 34 What is this device called? Punnett Square or Monohybrid cross

30. What law states that gene pairs segregate randomly and independently from each other? Law of independent assortment

31. Which Punnett Square is worked out correctly? Dd DD Dd DDDdD D Dd dd Dd DDddD D dd Dd dd DdddD d

32. If you flipped a coin five times and it came up on heads, what is the chance it will come up on heads next time? 50%

33. In Rabbits Black fur (B) is dominant to Brown fur (b) 12 34 What’s the color of both parents? Black

34. In Rabbits Black fur (B) is dominant to Brown fur (b) 12 34 What is the phenotype of Box 2? Black

35. All of the possible results of a genetic cross can be shown by using what tool? Punnett Square

36. What is the term for the physical appearance that an organism expresses? Phenotype

37. In Rabbits Black fur (B) is dominant to Brown fur (b) 12 34 What is the genotype of box 4? bb

38. How do the offspring of 2 purebred parents look in comparison? identical

39. Gregor Mendel used pea plants to show what? How traits are inherited

40. R =Round r =wrinkled Y = yellow and y=green X6 713 9 254 8 What is the genotype of the individual in box 2? RrYy

41. R =Round r =wrinkled Y = yellow and y=green X6 713 9 254 8 What is the phenotype of the individual in box 1? Round & yellow

42. R =Round r =wrinkled Y = yellow and y=green X6 713 9 254 8 What type of cross is this? Dihybrid

43. R =Round r =wrinkled Y = yellow and y=green X6 713 9 254 8 What is the genotype of the individual in box 7? RRYy

44. R =Round r =wrinkled Y = yellow and y=green X6 713 9 254 8 What is the phenotype of the individual in box 8? Wrinkled & green

45. End of Genetics Part I