1. Holt McDougal Ch 6 Meiosis & Mendel Genetics
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

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

52. Q 25
25. An individual who has 2 identical alleles for a trait is said to be _______________.
A) Heterozygous
B) Genotype
C) Phenotype
D) Homozygous

53. A 25
25. An individual who has 2 identical alleles for a trait is said to be _______________.
A) Heterozygous
B) Genotype
C) Phenotype
D) Homozygous

54. Q 26
26. A situation in which 2 dominant alleles are expressed at the same time is called what?
Codominance
B) Dihybrid
C) Heterozygous
D) Homozygous

55. A 26
26. A situation in which 2 dominant alleles are expressed at the same time is called what?
Codominance
B) Dihybrid
C) Heterozygous
D) Homozygous

56. Question 27 27. At the end of meiosis _____________cells form.
2 identical
B) 2 genetically different
C) 4 identical
D) 4 genetically different
E) 3 identical

57. A 27 27. At the end of meiosis _____________cells form. 2 identical
B) 2 genetically different
C) 4 identical
D) 4 genetically different
E) 3 identical

58. Q 28
28. An individual’s _________________refers to the set of alleles it has inherited.
A) Genotype
B) Phenotype
C) Carrier
D) Monohybrid
E) heterozygous

59. A 28
28. An individual’s _________________refers to the set of alleles it has inherited.
A) Genotype
B) Phenotype
C) Carrier
D) Monohybrid
E) heterozygous .

60. Q 29
29. The external physical appearance of an individual determined by the alleles present is called what?
A) Probability
B) Genotype
C) Phenotype
D) Codominance
E) Recessive

61. A 29
29. The external physical appearance of an individual determined by the alleles present is called what?
A) Probability
B) Genotype
C) Phenotype
D) Codominance
E) Recessive

62. Q 30
30. The likelihood that a specific event will occur is called what?
A) Dominance
B) Codominance
C) Probability
E) Monohybrid

63. A- 30
30. The likelihood that a specific event will occur is called what?
A) Dominance
B) Codominance
C) Probability
E) Monohybrid

64. Q 31
31) The passing of traits from parents to offspring is called _______.
A) Heredity B) Genetics C) Development

65. A 31
31) The passing of traits from parents to offspring is called _______.
A) Heredity B) Genetics C) Development

66. Q 32 32) The scientific study of heredity is called ________.
A) Genetics
B) Development
C) Traits
D) meiosis

67. A 32 32) The scientific study of heredity is called ________.
A) Genetics
B) Development
C) Traits
D) meiosis

68. Q 33
33) Situations in which one allele is not completely dominant over another allele for the gene are called ____________
A) Multiple alleles
B) Multiple Genes
C) Polygenci Inheritance
D) Incomplete Dominance

69. A 33
33) Situations in which one allele is not completely dominant over another allele for the gene are called ____________
A) Multiple alleles
B) Multiple Genes
C) Polygenci Inheritance
D) Incomplete Dominance

70. Q 34
34) When you flip a coin, what is the probability that it will come up tails?
A) 1 B) ½ C) ¼ D) 1/8 E) ¾

71. A 34
34) When you flip a coin, what is the probability that it will come up tails?
A) 1 B) ½ C) ¼ D) 1/8 E) ¾

72. Q 35
35) A typical human body cell contains 46 chromosomes. How many chromosomes are found in a typical human ovum or egg cell?
A) 46
B) 92
C) 45
D) 23
E) 12

73. A 35
35) A typical human body cell contains 46 chromosomes. How many chromosomes are found in a typical human ovum or egg cell?
A) 46
B) 92
C) 45
D) 23
E) 12