Download 13 MODIFIED TRUE/FALSE 1

Name:
ID: A
ID: A
125. You collect two samples of organisms from a nearby pond. One is a type of amoeba that reproduces through
binary fission, and the other is a tiny water insect that reproduces by sexual means. You study the organisms
and plot the growth of their population in each of your sample jars. Which of the graphs below is more likely
to show the growth of the amoeba population? Explain.
Science 9 - Biology Test Review
Answer Section
MODIFIED TRUE/FALSE
1. ANS: F, thymine
PTS: 1 DIE: Average OBJ: Section 4.1
TOP: The Function of the Nucleus within the Cell KEY: adenine | cytosine | DNA
2. ANS: F, gene
PTS: 1 DIF: Average OBJ: Section 4.1
TOP: The Function of the Nucleus within the Cell KEY: DNA | chromosome | gene
3. ANS: T PTS: 1 DIF: Average
OBJ: Section 4.1 TOP: The Function of the Nucleus within the Cell
KEY: vesicles | Golgi body | protein | membrane
4. ANS: T PTS: 1 DIF: Average
OBJ: Section 4.1 TOP: The Function of the Nucleus within the Cell
KEY: ribosomes | DNA | nucleus | proteins
5. ANS: T PTS: 1 DIF: Average
OBJ: Section 4.1 TOP: The Function of the Nucleus within the Cell
KEY: mitochondria | glucose | energy
6. ANS: F, remain constant
Time (days)
Time (days)
126. Describe one difference between a plant cell and an animal cell during cytokinesis.
127. What would be the result if the process of duplicating the DNA was not highly controlled within the cell?
128. You observe an apple tree and find that on the one tree there are four varieties of apples growing. Explain
how this could be possible.
PTS: 1 DIF: Easy OBJ: Section 4.1
TOP: The Function of the Nucleus within the Cell KEY: chromosomes
7. ANS: T PTS: 1 DIF: Average
OBJ: Section 5.2 TOP: Asexual Reproduction
KEY: fragmentation | budding | spore fonnation | asexual | reproduction
8. ANS: F, cytokinesis
PTS: 1 DIF: Difficult OBJ: Section 5.1 TOP: The Cell Cycle and Mitosis
KEY: mitosis | cytokinesis
9. ANS: T PTS: 1 DIF: Average
OBJ: Section 5.1 TOP: The Cell Cycle and Mitosis KEY: mitosis
10. ANS: F, centromere
PTS: 1 DIF: Average OBJ: Section 5.1 TOP: The Cell Cycle and Mitosis
KEY: mitosis | chromatids | centriole | centromere
11. ANS: T PTS: 1 DIF: Difficult
OBJ: Section 5.1 TOP: The Cell Cycle and Mitosis KEY: cancer | nuclei | checkpoints
12. ANS: F, not specialized, so they cannot take over
PTS: 1 DIF: Average OBJ: Section 5.1 TOP: The Cell Cycle and Mitosis
KEY: cancer | specialized
13. ANS: T PTS: 1 DIF: Easy
OBJ: Section 5.2 TOP: Asexual Reproduction KEY: grafting | vegetative reproduction
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ID: A
14. ANS: T
OBJ: Section 6.1
15. ANS: F, male
TOP: Meiosis
PTS: 1 DIF: Average
KEY: stamen
16. ANS: T
OBJ: Section 6.1 TOP: Meiosis
17. ANS: F, internally or externally
PTS: 1 DIF: Easy
KEY: meiosis | gamete
OBJ: Section 6.2 TOP: Sexual Reproduction
PTS: 1 DIF: Average
KEY: chromosomes | homologous | meiosis | zygote
PTS: 1 DIF: Average OBJ: Section 6.2 TOP: Sexual Reproduction
KEY: fertilization | internal | external
18. ANS: T PTS: 1 DIF: Average
OBJ: Section 6.2 TOP: Sexual Reproduction
KEY: pollen tube | style | stigma | ovary | gametes
19. ANS: F, any flower.
PTS: 1 DIF: Easy OBJ: Section 6.2 TOP: Sexual Reproduction
KEY: pollen | anther | stigma
20. ANS: T PTS: 1 DIF: Easy
OBJ: Section 6.2 TOP: Sexual Reproduction KEY: fetal development
21. ANS: T PTS: 1 DIF: Average
OBJ: Section 6.3 TOP: Assisted Reproductive Technologies
KEY: in vitro fertilization
ID: A
28. ANS:
LOC:
KEY:
29. ANS:
LOC:
KEY:
30. ANS:
LOC:
KEY:
31. ANS:
LOC:
KEY:
32. ANS:
LOC:
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33. ANS:
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34. ANS:
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35. ANS:
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36. ANS:
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KEY:
37. ANS:
MULTIPLE CHOICE
LOC:
22. ANS: B PTS: 1 DIF: Easy OBJ: Section
LOC: LS-R-01 TOP: The Function of the Nucleus within the Cell
KEY: chromosomes
23. ANS: B PTS: 1 DIF: Average OBJ: Section
LOC: LS-R-01 TOP: The Function of the Nucleus within the Cell
KEY: DNA | molecule | nitrogen | base
24. ANS: B PTS: 1 DIF: Average OBJ: Section
LOC: LS-R-01 TOP: The Function of the Nucleus within the Cell
KEY: genetic | code | bases | DNA | molecule
25. ANS: B PTS: 1 DIF: Average OBJ: Section
LOC: LS-R-01 TOP: The Function of the Nucleus within the Cell
KEY: cell | organelle | mitochondria
26. ANS: B PTS: 1 DIF: Average OBJ: Section
LOC: LS-R-01 TOP: The Function of the Nucleus within the Cell
KEY: cell | cell membrane
27. ANS: C PTS: 1 DIF: Easy OBJ: Section
LOC: LS-R-01 TOP: The Function of the Nucleus within the Cell
KEY: chromosomes | cell | nucleus
4.1
4.1
4.1
KEY:
38. ANS:
LOC:
KEY:
39. ANS:
LOC:
KEY:
40. ANS:
LOC:
4.1
4.1
41.
42.
43.
4.1
44.
45.
2
KEY:
ANS:
LOC:
ANS:
LOC:
ANS:
LOC:
ANS:
LOC:
ANS:
LOC:
D PTS: 1 DIF: Average OBJ: Section 4.1
LS-R-01 TOP: The Function of the Nucleus within the Cell
cytoplasm
B PTS: 1 DIF: Average OBJ: Section 4.1
LS-R-01 TOP: The Function of the Nucleus within the Cell
endoplasmic reticulum | cell wall
A PTS: 1 DIF: Average OBJ: Section 4.1
LS-R-01 TOP: The Function of the Nucleus within the Cell
Golgi body | organelle | protein
A PTS: 1 DIF: Average OBJ: Section 4.1
LS-R-01 TOP: The Function of the Nucleus within the Cell
chloroplast
A PTS: 1 DIF: Average OBJ: Section 4.1
LS-R-01 TOP: The Function of the Nucleus within the Cell
mitochondrion I ribosome
A PTS: 1 DIF: Average OBJ: Section 4.1
LS-R-01 TOP: The Function of the Nucleus within the Cell
cell membrane
B
PTS: 1
DIF: Average OBJ: Section 4.2
LS-R-01
TOP: Mutation
KEY: mutation | geneticist
PTS: 1
C
DIF: Average OBJ: Section 4.2
LS-R-01
TOP: Mutation
KEY: mutagens | mutations
PTS: 1
B
DIF: Easy OBJ: Section 4.1
LS-R-01
TOP: The Function of the Nucleus within the Cell
chromosomes I cell
C
PTS: 1 DIF: Average OBJ: Section 4.1
LS-R-01
TOP: The Function of the Nucleus within the Cell
bases | gene
D
PTS: 1
OBJ: Section 4.1
DIF: Average
LS-R-01
TOP: The Function of the Nucleus within the Cell
bases | gene
B
PTS: 1 DIF: Average OBJ: Section 4.1
LS-R-01
TOP: The Function of the Nucleus within the Cell
protein | messenger | honnone
D PTS: 1 DIF: Difficult OBJ: Section 4.1
LS-R-01 TOP: The Function of the Nucleus within the Cell
cell membrane | proteins | vesicle
D PTS: 1 DIF: Average OBJ: Section 4.2
LS-R-01 TOP: Mutation KEY: mutation | bases
B PTS: 1 DIF: Easy OBJ: Section 4.2
LS-R-01 TOP: Mutation KEY: mutation | gene therapy
B PTS: 1 DIF: Difficult OBJ: Section 4.2
LS-R-01 TOP: Mutation KEY: genetic | immune system
D PTS: 1 DIF: Average OBJ: Section 5.2
LS-R-03 TOP: Asexual Reproduction KEY: spores
B PTS: 1 DIF: Average OBJ: Section 5.2
LS-R-03 TOP: Asexual Reproduction KEY: binary fission | offspring
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ID: A
PTS: 1 DIE: Easy
46. ANS: C
TOP: The Cell Cycle and Mitosis
LOG: LS-R-01
PTS: 1 DIE: Average
47. ANS: D
LOG: LS-R-01
TOP: The Cell Cycle and Mitosis
PTS: 1 DIE: Average
48. ANS: A
TOP: The Cell Cycle and Mitosis
LOG: LS-R-01
PTS: 1 DIE: Average
49. ANS: B
TOP: Asexual Reproduction
LOG: LS-R-01
PTS: 1 DIE: Average
50. ANS: C
LOG: LS-R-01
TOP: The Cell Cycle and Mitosis
PTS: 1 DIE: Average
51. ANS: D
TOP: Asexual Reproduction
LOG: LS-R-03
PTS: 1 DIE: Average
52. ANS: C
TOP: Asexual Reproduction
LOG: LS-R-03
PTS: 1 DIE: Easy
53. ANS: C
TOP: Asexual Reproduction
LOG: LS-R-03
PTS: 1 DIE: Average
54. ANS: D
TOP: Asexual Reproduction
LOG: LS-R-03
PTS: 1 DIE: Average
55. ANS: B
TOP: The Cell Cycle and Mitosis
LOG: LS-R-01
KEY: mitosis | early prophase | nucleolus | nuclear membrane
PTS: 1 DIE: Average
56. ANS: D
TOP: The Cell Cycle and Mitosis
LOG: LS-R-01
PTS: 1 DIE: Average
57. ANS: B
TOP: The Cell Cycle and Mitosis
LOG: LS-R-01
PTS: 1 DIE: Average
58. ANS: A
TOP: The Cell Cycle and Mitosis
LOG: LS-R-01
KEY: cell cycle | interphase | mitosis | cytokinesis
PTS: 1 DIE: Average
59. ANS: B
TOP: The Cell Cycle and Mitosis
LOG: LS-R-01
PTS: 1 DIE: Easy
60. ANS: C
TOP: The Cell Cycle and Mitosis
LOG: LS-R-01
PTS: 1 DIE: Average
61. ANS: D
TOP: The Cell Cycle and Mitosis
LOG: LS-R-01
PTS: 1 DIE: Easy
62. ANS: A
TOP: Asexual Reproduction
LOG: LS-R-03
KEY: clone | genetic | asexual reproduction
PTS: 1 DIE: Average
63. ANS: C
TOP: The Cell Cycle and Mitosis
LOG: LS-R-03
KEY: asexual reproduction | fragmentation
PTS: 1 DIE: Average
64. ANS: C
TOP: Asexual Reproduction
LOG: LS-R-03
PTS: 1 DIE: Average
65. ANS: C
TOP: Asexual Reproduction
LOG: LS-R-03
PTS: 1 DIE: Average
66. ANS: D
TOP: Asexual Reproduction
LOG: LS-R-03
KEY: asexual reproduction | vegetative reproduction
4
OBJ: Section 5.1
KEY: chromosomes | nucleus
OBJ: Section 5.1
KEY: mitosis
OBJ: Section 5.1
KEY: mitosis
OBJ: Section 5.2
KEY: binary fission | amoeba
OBJ: Section 5.1
KEY: cell cycle | mitosis
OBJ: Section 5.2
KEY: asexual | chromosomes
OBJ: Section 5.2
KEY: fragmentation
OBJ: Section 5.2
KEY: asexual reproduction
OBJ: Section 5.2
KEY: vegetative reproduction
OBJ: Section 5.1
OBJ: Section 5.1
KEY: telophase | mitosis
OBJ: Section 5.1
KEY: prophase | mitosis
OBJ: Section 5.1
OBJ: Section 5.1
KEY: chromosomes | metaphase
OBJ: Section 5.1
KEY: cell cycle | mitosis
OBJ: Section 5.1
KEY: cell cycle | DNA
OBJ: Section 5.2
OBJ: Section 5.2
OBJ: Section 5.2
KEY: grafting | scion
OBJ: Section 5.2
KEY: embiyonic stem cells
OBJ: Section 5.2
DIE: Easy OBJ: Section 6.1
PTS: 1
67. ANS: C
KEY: zygote | fertilized cell
TOP: Meiosis
LOG: LS-R-02
DIE: Easy OBJ: Section 6.1
PTS: 1
68. ANS: C
KEY: inherit | genes
TOP: Meiosis
LOG: LS-R-01
DIE: Average OBJ: Section 6.2
PTS: 1
69. ANS: D
KEY: seed | ovary
TOP: Sexual Reproduction
LOG: LS-R-01
DIE: Average OBJ: Section 6.1
PTS: 1
70. ANS: C
KEY: meiosis
TOP: Meiosis
LOG: LS-R-01
DIE: Easy OBJ: Section 6.1
PTS: 1
71. ANS: B
KEY: chromosomes
TOP: Meiosis
LOG: LS-R-01
DIE: Easy OBJ: Section 6.1
PTS: 1
72. ANS: C
KEY: chromosomes | spenn
TOP: Meiosis
LOG: LS-R-01
DIE: Average OBJ: Section 6.2
PTS: 1
73. ANS: D
TOP: Sexual Reproduction
LOG: LS-R-03
KEY: sexual reproduction | gamete | chromosome
DIE: Easy OBJ: Section 6.1
PTS: 1
74. ANS: B
KEY: gamete | sperm
TOP: Meiosis
LOG: LS-R-01
DIE: Easy OBJ: Section 6.1
PTS: 1
75. ANS: C
KEY: meiosis | spenn | egg
TOP: Meiosis
LOG: LS-R-01
DIE: Difficult OBJ: Section 6.1
PTS: 1
76. ANS: C
KEY: meiosis | chromosomes
TOP: Meiosis
LOG: LS-R-01
DIE: Average OBJ: Section 6.1
PTS: 1
77. ANS: C
KEY: mitosis
TOP: Meiosis
LOG: LS-R-01
DIE: Average OBJ: Section 6.2
PTS: 1
78. ANS: D
KEY: sexual reproduction
TOP: Sexual Reproduction
LOG: LS-R-03
DIE: Average OBJ: Section 6.1
PTS: 1
79. ANS: B
KEY: meiosis | diploid | chromosomes
TOP: Meiosis
LOG: LS-R-01
DIE: Easy OBJ: Section 6.1
PTS: 1
80. ANS: B
KEY: egg | spenn | fertilization
TOP: Meiosis
LOG: LS-R-01
DIE: Average OBJ: Section 6.1
PTS: 1
81. ANS: D
TOP: Meiosis
KEY: diploid | fertilization | zygote
LOG: LS-R-01
DIE: Average OBJ: Section 6.2
PTS: 1
82. ANS: B
KEY: pistil
TOP: Sexual Reproduction
LOG: LS-R-02
DIE: Average OBJ: Section 6.3
PTS: 1
83. ANS: C
TOP: Assisted Reproductive Technologies
LOG: LS-R-02
KEY: in vitro fertilization
DIE: Difficult OBJ: Section 6.3
PTS: 1
84. ANS: A
TOP: Assisted Reproductive Technologies
LOG: LS-R-02
KEY: intracytoplasmic spenn injection spenn | uterus | zygote
DIE: Average OBJ: Section 6.3
PTS: 1
85. ANS: D
TOP: Assisted Reproductive Technologies
LOG: LS-R-02
KEY: in vitro fertilization | embryo | uterus | fertilization
DIE: Average OBJ: Section 6.3
PTS: 1
86. ANS: A
TOP: Assisted Reproductive Technologies
LOG: LS-R-02
KEY: assisted reproductive technology
5
ID: A
87. ANS: D PTS: 1 DIP: Average OBJ: Section 6.3
LOG: LS-R-02 TOP: Assisted Reproductive Technologies
KEY: assisted reproductive technology
COMPLETION
88. ANS: genes
PTS: 1 DIP: Average OBJ: Section 4.1 LOG: LS-R-01
TOP: The Function of the Nucleus within the Cell KEY: DNA | genes
89. ANS:
nitrogen bases
adenine, cytosine, guanine, thymine
PTS: 1 DIP: Average OBJ: Section 4.1 LOG: LS-R-01
TOP: The Function of the Nucleus within the Cell
KEY: DNA ] nitrogen bases | adenine | cytosine | guanine | thymine
90. ANS: nucleus
PTS: 1 DIP: Easy OBJ: Section 4.1
TOP: The Function of the Nucleus within the Cell
91. ANS: cell membrane
LOC: LS-R-01
KEY: DNA | nucleus
PTS: 1 DIP: Easy OBJ: Section 4.1
TOP: The Function of the Nucleus within the Cell
92. ANS: chromatin
LOC: LS-R-01
KEY: cell membrane
PTS: 1 DIP: Difficult OBJ: Section 4.1
TOP: The Function of the Nucleus within the Cell
93. ANS: reproductive cloning
LOC: LS-R-01
KEY: chromatin | DNA | proteins
97. ANS: cytokinesis
OBJ: Section 5.1
KEY: cytokinesis
LOC: LS-R-01
DIP: Average OBJ: Section 6.1
KEY: gamete | chromosomes | parent
LOC: LS-R-01
PTS: 1 DIP: Average
TOP: The Cell Cycle and Mitosis
ANS: half
PTS: 1
TOP: Meiosis
99. ANS: embryo
PTS: 1
TOP: Meiosis
100. ANS: stamen
DIP: Average OBJ: Section 6.1 LOC: LS-R-02
KEY: zygote | embryo
PTS: 1 DIP: Average
TOP: Sexual Reproduction
101. ANS: sexual reproduction
OBJ: Section 6.2 LOC: LS-R-02
KEY: stamen | reproductive organ
PTS: 1 DIP: Easy
TOP: Sexual Reproduction
102. ANS: zygote
OBJ: Section 6.2 LOC: LS-R-03
KEY: sexual reproduction | offspring
PTS: 1
TOP: Meiosis
DIP: Average OBJ: Section 6.1 LOC: LS-R-01
KEY: diploid | fertilization
MATCHING
PTS: 1 DIP: Average
TOP: Asexual Reproduction
94. ANS: chromatids
OBJ: Section 5.2 LOC: LS-R-02
KEY: reproductive cloning
PTS: 1 DIP: Average
TOP: The Cell Cycle and Mitosis
95. ANS: centromere
OBJ: Section 5.1
KEY: chromatids
PTS: 1 DIP: Average
TOP: The Cell Cycle and Mitosis
96. ANS: clone
OBJ: Section 5.1 LOC: LS-R-01
KEY: chromatids I centromere
LOC: LS-R-01
PTS: 1 DIP: Average OBJ: Section 5.2 LOC: LS-R-02
TOP: Asexual Reproduction KEY: clone | genetic
6
ID: A
103. ANS:
LOC:
KEY:
104. ANS:
F
LS-R-01
vacuole
B
LOC: LS-R-01
KEY:
105. ANS:
LOC:
KEY:
106. ANS:
LOC:
KEY:
107. ANS:
LOC:
KEY:
108. ANS:
PTS: 1 DIP: Average OBJ: Section 4.1
TOP: The Function of the Nucleus within the Cell
PTS: 1 DIP: Easy OBJ: Section 4.1
TOP: The Function of the Nucleus within the Cell
cell wall 1 rigid
A
PTS: 1 DIP: Easy OBJ: Section 4.1
LS-R-01
TOP: The Function of the Nucleus within the Cell
cell membrane
H
PTS: 1 DIP: Average OBJ: Section 4.1
LS-R-01
TOP: The Function of the Nucleus within the Cell
vacuole | membrane | storage
PTS: 1 DIP: Easy OBJ: Section 4.1
D
LS-R-01
TOP: The Function of the Nucleus within the Cell
control centre | nucleus
C
PTS: 1 DIP: Average OBJ: Section 4.1
TOP: The Function of the Nucleus within the Cell
LOC: LS-R-01
KEY: cytoplasm | organelles
7
ID: A
ID: A
109. ANS
D
LOG LS-R-02
110. ANS F
LOG LS-R-02
111. ANS A
LOG LS-R-02
112. ANS G
LOG LS-R-02
113. ANS B
LOG LS-R-02
114. ANS E
LOG LS-R-02
PTS:
TOP:
PTS:
TOP:
PTS:
TOP:
PTS:
TOP:
PTS:
TOP:
PTS:
TOP:
1
DIP:
Sexual Reproduction
1
DIP:
Sexual Reproduction
DIP:
1
Sexual Reproduction
1
DIP:
Sexual Reproduction
DIP:
1
Sexual Reproduction
1
DIP:
Sexual Reproduction
Average
Average
Average
Average
Average
Average
OBJ:
KEY:
OBJ:
KEY:
OBJ:
KEY:
OBJ:
KEY:
OBJ:
KEY:
OBJ:
KEY:
Section 6.2
endodenn | gastrula
Section 6.2
mesoderm | gastrula
Section 6.2
blastula
Section 6.2
morula
Section 6.2
ectodenn | gastrula
Section 6.2
gastrula
SHORT ANSWER
115. ANS:
The sequence of nitrogen bases in the rungs of the ladder forms the genetic code.
PTS: 1 DIP: Average OBJ: Section 4.1 LOG: LS-R-01
TOP: The Function of the Nucleus within the Cell KEY: genetic code | nitrogen bases
116. ANS:
The nucleus contains the genetic material (DNA), which provides the instructions needed to control
everything that happens within the cell.
PTS: 2 DIP: Average OBJ: Section 4.1 LOG: LS-R-01
TOP: The Function of the Nucleus within the Cell KEY: cell | nucleus | organelle
117. ANS:
Genes are small segments of DNA located at specific places on a chromosome. Genes store the information
needed to produce 90 000 to 100 000 different proteins used in the cells of your body.
The arrangement of bases in a gene will usually be used to produce a specific protein. Genes can vary in
length from hundreds to thousands of the bases. Every chromosome carries thousands of genes and therefore
contains the infonnation to make thousands of different proteins.
PTS: 3 DIP: Average OBJ: Section 4.1 LOG: LS-R-01
TOP: The Function of the Nucleus within the Cell KEY: genes | chromosomes
118. ANS:
1. One of the bases could be left out of the sequence.
2. An extra base could be added to the sequence.
3. One base could be substituted for another within the gene.
119. ANS:
- Interphase is the longest stage in the cell cycle.
- The cell carries out all its normal fimctions.
- The cell roughly doubles everything in the cytoplasm.
- The cell increases in size and makes proteins and molecules necessary for the cell to function.
- Organelles such as mitochondria and chloroplasts are completely duplicated.
- DNA copies or makes a replica of itself so the cell has two complete sets of DNA.
- In its loosely coiled form, the DNA can be copied into RNA so that proteins can be made in preparation for
cell division.
PTS: 5 DIP: Difficult OBJ: Section 5.1 LOG: LS-R-01
TOP: The Cell Cycle and Mitosis KEY: cell cycle | interphase | organelles
120. ANS:
1 = centrioles
2 = spindle fibres
3 = nucleolus
4 = chromosome
5 = centromere
PTS: 5 DIP: Average OBJ: Section 5.1 LOG: LS-R-01
TOP: The Cell Cycle and Mitosis
KEY: prophase | mitosis | centrioles | chromosomes | spindle fibres | nucleolus | centromere
121. ANS:
Mitosis takes place in every tissue of the body, while meiosis takes place only in the reproductive organs.
PTS: 1 DIP: Average OBJ: Section 6.2 LOG: LS-R-03
TOP: Sexual Reproduction KEY: mitosis | meiosis
122. ANS:
Pollination is the transfer of male gametes in structures called pollen from the male reproductive part of a
plant to the female reproductive part of a plant.
PTS: 2 DIP: Average OBJ: Section 6.2 LOG: LS-R-02
TOP: Sexual Reproduction KEY: pollination | pollen | gametes
PROBLEM
123. ANS:
Different genes are activated in different cells. Only genes related to brain cell structure and function are
activated in brain cells, while other parts of the DNA are inactive.
PTS: 3 DIP: Average OBJ: Section 4.1 LOG: LS-R-01
TOP: The Function of the Nucleus within the Cell KEY: DNA | tissue | specialization
PTS: 3 DIP: Average OBJ: Section 4.2 LOG: LS-R-01
TOP: Mutation KEY: gene | mutation | base
8
9
ID: A
124. ANS:
The single cell must divide over and over again to create many cells. Groups of those cells must be
differentiated into tissues that perform specific functions. The differentiation occurs as cells specialize and
the gene is read in a different way depending on where it is found in the group of cells.
PTS: 3 DIP: Average OBJ: Section 4.1 LOG: LS-R-01
TOP: The Function of the Nucleus within the Cell
KEY: organism | differentiation | specialization | tissue | organ
125. ANS:
Graph B is more likely to show the amoeba population. Asexual reproduction can take place much more
quickly than sexual reproduction.
PTS: 3 DIP: Average OBJ: Section 5.2 LOG: LS-R-03
TOP: Asexual Reproduction KEY: sexual | asexual | binary fission
126. ANS:
During cytokinesis in a plant cell, the cell wall grows a plate across the centre of the cell to divide the cell
into two daughter cells. Since the animal cell does not have a cell wall, this plate does not develop in an
animal cell.
PTS: 2 DIP: Average OBJ: Section 5.1 LOG: LS-R-01
TOP: The Cell Cycle and Mitosis KEY: cytokinesis | plate
127. ANS:
- Mutations would be more likely to occur.
- Cells that had errors within them would be more likely to reproduce, resulting in more instances of cancer.
- More mutated cells would.reproduce.
- Fewer organisms would be able to survive.
PTS: 2 DIP: Difficult OBJ: Section 5.1 LOC: LS-R-01
TOP: The Cell Cycle and Mitosis KEY: cancer | DNA | mutation
128. ANS:
Scions of each of the four types of apples must have been grafted to a common root stock and stem system.
PTS: 1 DIP: Average OBJ: Section 5.2 LOC: LS-R-03
TOP: Asexual Reproduction KEY: graft | scion
10