Level Genetics Review Genetics Worksheets With Answers (Page 6 of 6) in pdf

Level Genetics Review Genetics Worksheets With Answers Page 6

THE FOLLOWING PEDIGREE SHOWS THE INHERITANCE PATTERN OF CYSTIC FIBROSIS. USE THE

PEDIGREE TO ANSWER QUESTIONS 47-59.

III

47. How many females are represented in the pedigree? 9

48. How many cystic fibrosis females are found in the pedigree? 3

49. How many normal females are found in the pedigree? 6

50. How many normal males are found in the pedigree? 7

51. How many cystic fibrosis males are found in the pedigree? 2

52. What type of twins (II 6-7) are represented? identical

53. What type of twins (III 3-4) are represented? fraternal

54. Which set of twins do BOTH of the individuals have cystic fibrosis?

Set (II 6-7) or set (III 3-4) II 6- 7

55. Is cystic fibrosis a recessive or dominant gene? recessive

56. What is the genotype of person III-6? ff

57. What is the phenotype of I-1? Cystic fibrosis

58. Is I-3 homozygous recessive, homozygous dominant or heterozygous?

Heterozygous

59. Is I-2 homozygous recessive, homozygous dominant or heterozygous?

Homozygous dominant

Use the words below to answer questions 60- 64:

a. Body

d. Growth and Repair

b. Reproductive

e. 2

c. Gamete

f. 4

60. Mitosis occurs in this type of cell - A

61. The number of cells produced after one mitotic division - E

62. The purpose of cell division during mitosis - D

63. The purpose of cell division during meiosis - B

64. Meiosis occurs in this type of cell - C

65. A male sex cell is called a/an sperm.

66. A female sex cell is called a/an egg.

67. The diploid number of chromosomes in humans is 46.

68. A fruit fly has 8 chromosomes in its body cells. What is the haploid number? 4

69. A dog has 78 chromosomes in its body cells. What is the diploid number? 78

Level Genetics Review Genetics Worksheets With Answers Page 6