1. AP Biology Exam Review Put Your Knowledge to the Test
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2. How This Works Read the Question
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3. Genetics 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

4. Genetics Continued 25 26 27 28 29 35 30 31 32 33 34

5. A B C 1. What are Mendel’s Laws? Law of Segregation
Law of Independent assortment C
Both Law of Segregation and Law of Independent Assortment

6. Nope! Try Again
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7. Right!!!!!!!!
Both the Law of Segregation and the Law of Independent Assortment are included in Mendel’s Law
The Law of Segregation states that each allele segregates separately. One of each homologous chromosomes goes to each new cell.
The Law of Independent Assortment states that in a dihybrid cross, each trait is independent of the other.
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8. A B C 2. What is a Locus? The copied strand of the chromosome.
Exact location on a chromosome where a gene is located. C
The offspring generation

9. Wrong! Try Again
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10. Right!!!!!!!!
A locus is the exact location on a chromosome where a gene is located
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11. A B C 3. What is progeny? The offspring generation
The parent generation C
A sex influenced trait

12. SORRY, Try again!
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13. Progeny is the offspring generation of a test cross
RIGHT!
Progeny is the offspring generation of a test cross
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14. 4. What is a homologous pair?
Every cell contains two copies of each chromosome B
The chromosome and its copy C
The original pair of chromosomes

15. Wrong Answer!
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16. ***RIGHT***
In a homologous pair, every cell contains two copies of each chromosome
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17. 5. Define an x-inactivation
A genetic defect on the x chromosome B
The x chromosome replicates uncontrollable C
One of the x chromosomes does not uncoil into chromatin, it becomes a barr body instead.

18. TRY AGAIN
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19. CORRECT
X-inactivation is when one of the x chromosomes does not uncoil into chromatin and becomes a barr body instead
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20. 6. What is a test cross? A
A cross between any two pair of alleles to find the progeny
When you are trying to figure out what the make up of the allele is, A_ (either A or a), and you cross it with a pure recessive allele B C
A test between progeny to find the parent generation

21. Sorry, try again
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22. Yeah!!
A test cross is when you are trying to figure out what the make up of the allele is, A_ (either A or a), and you cross it with a pure recessive allele
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23. 7. In the genus Homo sapien, who is the heterogametic sex?
Female B
Either sex could be the heterogametic sex C
Male

24. WRONG!
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25. ~RIGHT~ In the genus Homo sapien, the male is the heterogametic sex
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26. 8. In the genus Homo sapien, who is the homogametic sex?
Female B
Male C
Either sex could be the homogametic sex

27. NOPE, TRY AGAIN!
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28. ALRIGHT! In the genus Homo sapien, the female is the homogametic sex
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29. 9. What is the genotype of the blood type A?
AA and AB B
AB and AO C
AA and AO

30. Sorry, wrong answer
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31. RIGHT!!
The genotype of blood type A is AA or AO
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32. 10. What is the genotype of the blood type B?
BB and BO B
BB and AB C
AB and BO

33. WRONG
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34. YEP!
The genotype for blood type B is BO or BB
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35. 11. What is the genotype of the blood type AB?
AB and AO B AB C
AA and AB

36. ~TRY AGAIN~
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37. ***RIGHT***
The genotype for blood type AB is AB
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38. 12. What is the genotype of the blood type O?
OO and BO B OO C
AO and OO

39. Try Again!
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40. CORRECT!!!!
The Genotype for blood type O is OO
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41. A B C 13. What is pleiotrophy? An inactive gene
A single gene which has multiple effects C
A recessive gene that shows in the phenotype

42. Wrong, try again
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43. RIGHT Pleiotrophy is a single gene which has multiple effects
An example would be Siamese cats
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44. 14. What is epistasis? A
A gene that expressed in the genotype but not shown in the phenotype B
A gene which effects multiple characteristics C
Two recessive genes which cause dominance not to show

45. Go Back and Try Again!
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46. You’re Right!!!
An epistasis is two recessive genes that cause dominance not to show
An example would be snapdragons
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47. 15. What is polygenic inheritance?
A single gene which has multiple effects B
A gene which shows no characteristics C
A dominant trait that is not expressed

48. Nope, try again
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49. RIGHT!!!
Polygenic Inheritance is a single gene which has multiple effects
An example would be in skin color and height
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50. 16. An environmentally produced phenotype that stimulates the effects of a particular gene is called: A
Genetic Drift B
Industrial Melanism C
A Phenocopy

51. SORRY, GO BACK !!!
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52. Correct!!!!
An environmentally produced phenotype that stimulates the effects of a particular gene is called a phenotype
Examples are tranquilizer
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53. 17. Which genetic defect is the inability to break down phenylalanine?
Tay-Sach’s Syndrome B
Phenylketonuria C
Huntington Disease

54. WRONG
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55. RIGHT
The genetic disease that effects the inability to break down phenylalanine is phenylketonuria.
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56. 18. Which genetic defect is characterized by lipids causing nervous system disorder?
Tay-Sachs Syndrome B
Phenylketonuria C
Huntington Disease

57. Go Back and Try Again!
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58. ***RIGHT***
Tay-Sachs syndrome is characterized by lipids causing a nervous system disorder.
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59. 19. Which genetic disease starts at middle age with mild mental illness?
Tay-Sach’s Syndrome B
Cystic Fibrosis C
Huntington disease

60. Nope, try again
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61. ~RIGHT~
Huntington disease is a genetic disease which starts at middle age with mild mental illness.
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62. 20. Which genetic defect has sickle shaped cells and abnormal hemoglobin?
Down Syndrome B
Cystic Fibrosis C
Sickle cell anemia

63. Sorry, wrong answer
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64. Correct!!!!
Sickle cell anemia is characterized by sickle shaped cells and abnormal hemoglobin.
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65. 21. Which genetic disease causes problems with blood clotting?
Sickle Cell Anemia B
Hemophilia C
Cystic Fibrosis

66. NO WAY!!
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67. RIGHT
Hemophilia is a genetic disease which causes problems with blood clotting.
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68. 22. What is the inability to distinguish red from green?
Sickle Cell Anemia B
Hemophilia C
Red-green colorblindness

69. SORRY, TRY AGAIN
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70. CORRECT
Red-green colorblindness is a genetic disorder which is characterized by the inability to distinguish red from green.
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71. 23. What genetic disease is known as trisomy21?
Down’s Syndrome B
Tay-Sach’s Syndrome C
Red-Green Colorblindness

72. **TRY AGAIN**
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73. GOOD JOB
The genetic disease also know as trisomy 21 is Down’s Syndrome.
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74. 24. Which genetic disease causes the deteriorating of muscles?
Cystic Fibrosis B
Duchene’s Muscular Dystrophy C
Down’s Syndrome

75. NOPE
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76. RIGHT!!!
Duchene’s Muscular Dystrophy is a genetic disease which causes the deteriorating of muscles.
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77. 25. Which genetic disease is caused by an X, X, and Y chromosome?
Klinefelton syndrome B
Down’s Syndrome C
Criduchat

78. WRONG ANSWER
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79. CORRECT
The genetic disease caused by an XXY chromosome is Klinefelton syndrome
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80. 26. Which genetic disease is characterized by a cat-like cry?
Criduchat B
Down’s Syndrome C
Hemophilia

81. **TRY AGAIN**
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82. ALRIGHT!
The genetic disease characterized by a cat-like cry is Criduchat.
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83. A B C 27. What is deletion? Sections of the chromosome are inverted
Sections of the chromosome are duplicated C
Sections of the chromosome are deleted

84. Try again
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85. RIGHT!!!!
Deletion happens when sections of the chromosomes are deleted.
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86. A B C 28. What is inversion? Sections of the chromosome are switched
Sections of the chromosome are duplicated C
Sections of the chromosome are deleted

87. Sorry, Wrong Answer
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88. Yep! Inversion is when sections of the chromosome are switched.
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89. A B C 29. What is translocation?
A section of one chromosome switches with a section of another chromosome B
Sections of the chromosome are switched C
A section of the chromosome is deleted

90. Try again
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91. Good answer
Translocation is when a section of one chromosome switches with another chromosome.
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92. A B C 30. What is duplication? Sections of the chromosome are deleted
Sections of the chromosome are switched C
Sections of a chromosome replicate more than once

93. Wrong Answer
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94. Alright!
Duplication is when sections of a chromosome are duplicated more than once.
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95. 31. What is nondisjunction?
There is a duplication of the chromosome B
The homologous chromosomes do not separate at interphase C
One X chromosome is duplicated in chromosome 23

96. SORRY, TRY AGAIN
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97. GOOD JOB
Nondisjunction is when the homologous chromosomes do not separate at interphase.
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98. A B C 32. What is expressivity?
The degree to which a particular gene is expressed B
There is a duplication of chromosome 21 C
Recessive genes are expressed instead of dominant genes

99. Go back and try again
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100. RIGHT!!!
Expressivity is the degree to which a particular gene is expressed.
An example would be sickle cells
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101. A B C 33. What is polyploidy? Chromosome 21 duplicates more than once
There are more than two complete sets of chromosomes C
The X chromosome is expressed twice along with a Y chromosome

102. NOPE, GO BACK
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103. RIGHT!!!
Polyploidy is when there are more than two complete sets of chromosomes.
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