Biology Review Game

1. Biology Review Game Holt McDougal Ch 6 Meiosis & Mendel Genetics

2. Q 1 • 1. Who is considered the “Father of Genetics”?

3. A 1 • 1. Who is considered the “Father of Genetics”? • Gregor Mendel

4. Q 2 • 2. Homologous chromosomes are pairs of chromosomes containing genes that code for ________. • A) Different traits • B) the same traits • C) DNA • D) Sex of the offspring

5. A 2 • B) the same traits

6. Q3 • 3. A haploid cell has how many sets of chromosomes? • A) one set • B) 2 sets • C) 3 sets • D) 4 sets

7. A3 • A) one set

8. Q 4 • A _______________allele masks or hides the effects of a ___________ allele. • A) recessive; dominant • B) Dominant; Recessive • C) Codominant; dominant

9. A 4 • B) Dominant; Recessive

10. Q 5 5. What is the difference between a GENOTYPE versus a PHENOTYPE?

11. A 5 • Genotype- the genetic alleles for a trait represented by letters. • Phenotype- the physical appearance of a trait.

12. Q 6 • 6. Does an individual have to visually show the phenotype for a trait in order for that trait to show up in the offspring? Yes or No.

13. A 6 • No, it could be recessive & hidden.

14. Q 7 • 7. What is the difference between a Homozygous individual and a Heterozygous individual?

15. A 7 HOMOZYGOUS – has 2 alleles that are the same (such as TT or tt) Heterozygous – has 2 different alleles (Tt)

16. Q 8 • 8. When you have complete dominance, in heterozygotes which trait is expressed? • A) the dominant trait • B) the recessive trait • C) a blending of dominant & recessive

17. A 8 • A) the dominant trait

18. Q 9 • 9. Is the allele for a dominant or a recessive trait usually represented by a CAPITAL letter?

19. A 9 • DOMINANT trait (capital letter)

20. Q 10 • 10. Crossing over occurs during what phase of meiosis (be specific)

21. A 10 • 10. Crossing over occurs during what phase of meiosis (be specific) • Prophase 1

22. Q 11 • 11) The process of meiosis involves how many divisions and results in how many daughter cells? • A) one division & 2 daughter cells • B) 2 divisions & 4 daughter cells • C) 3 divisions & 3 daughter cells

23. A 11 • B) 2 divisions & 4 daughter cells

24. Second #11 • Yellow peas (Y) are dominant to green peas (y). Which of the following represents the genotype of a pea plant that is heterozygous for yellow. • A) YY • B) Yy • C) yy • d) gg • E) YG

25. Answer Second # 11 • B) Yy (capital Y and little y) = heterozygous

26. Q 12 • 12. Which law states that “alleles of a gene separate from each other during meiosis”. • A) Law of Segregation • B) Law of Independent Assortment • C) Law of genotypes

27. A 12 • 12. Which law states that “alleles of a gene separate from each other during meiosis”. • A) Law of Segregation

28. Q 13 • 13. True or False- “When crossing over occurs, chromosomes exchange corresponding segments of DNA”

29. A 13 • TRUE

30. Q 14 • 14) Which of the following provides new genetic combinations? • A) Crossing over • B) Random fertilization • C) Independent Assortment • D) All of the above

31. A 14 • 14) Which of the following provides new genetic combinations? • A) Crossing over • B) Random fertilization • C) Independent Assortment • D) All of the above

32. Q 15 • 15.) During Cytokinesis in females the _______________divides unequally. • A) Egg • B) DNA • C) Cytoplasm

33. A 15 • 15.) During Cytokinesis in females the _______________divides unequally. • A) Egg • B) DNA • C) Cytoplasm

34. Q 16 • 16) What is produced during oogenesis in females? • A) One ovum (egg) and 3 polar bodies • B) 3 eggs & one polar body • C) 2 eggs & 2 polar bodies • D) 4 eggs

35. A 16 • 16) What is produced during oogenesis in females? • A) One ovum (egg) and 3 polar bodies • B) 3 eggs & one polar body • C) 2 eggs & 2 polar bodies • D) 4 eggs

36. Q 17 • 17.) Gametes are produced by what process? • A) Mitosis • B) Meiosis • C) Crossing-Over • D) Replication • E) Tetrads

37. A 17 • 17.) Gametes are produced by what process? • A) Mitosis • B) Meiosis • C) Crossing-Over • D) Replication • E) Tetrads

38. Q 18 • 18.) If an organisms diploid number is 20, what is it’s haploid number? • A) 10 (1/2 of 20) • B) 40 (2x20) • C) 20 • D) 23

39. A 18 • 18.) If an organisms diploid number is 20, what is it’s haploid number? • A) 10 (1/2 of 20) • B) 40 (2x20) • C) 20 • D) 23

40. Q 19 • A person who is heterozygous for a recessive disorder is called what? ______________ • Phenotypic B) a carrier C) codominant D) genotypic

41. A 19 • A person who is heterozygous for a recessive disorder is called what? ______________ • Phenotypic B) a carrier C) codominant D) genotypic

42. Q 20 • 20. Chromosomes form Tetrads during what process (be specific). • A) Mitosis • B) Prophase I of meiosis • C) Prophase II of meiosis • D) Interphase • E) Metaphase I

43. A 20 • 20. Chromosomes form Tetrads during what process (be specific). • A) Mitosis • B) Prophase I of meiosis • C) Prophase II of meiosis • D) Interphase • E) Metaphase I

44. Q 21 • A __________________cross involves one pair of contrasting traits. • dihybrid B) Monohybrid C) Homozygous D) Heterozygous

45. A 21 • A __________________cross involves one pair of contrasting traits. • dihybrid B) Monohybrid C) Homozygous D) Heterozygous • .

46. Q 22 • 22) Mendel called the offspring of the P generation the _____________generation. • A) F1 or First Filial • B) F2 or Second Filial • C) P (Parental) • D) Second Parental

47. A 22 • 22) Mendel called the offspring of the P generation the _____________generation. • A) F1 or First Filial • B) F2 or Second Filial • C) P (Parental) • D) Second Parental

48. Q 23 • 23) Different forms of a particular gene are called ___________________. • A) phenotypes • B) Alleles • C) Genotypes • D)Codominance • E) F-1

49. A 23 • 23) Different forms of a particular gene are called ___________________. • A) phenotypes • B) Alleles • C) Genotypes • D)Codominance • E) F-1

50. Q 24 • 24. In heterozygous individuals, only the __________allelle is expressed. • A) Recessive • B) Dominant • C) Codominant • D) Monohybrid • E) Sex-linked