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Unformatted text preview: water in - water out
89. Isotonic Solution
Equal"
normal
normal / nomal
Hao hows out
90. Hypertonic Solution
" Itigh"
Shrinks shrinks / shrinks
to balance
MITOSIS, THE CELL CYCLE, AND CANCER
Use the following link to watch the "Mitosis" video by the Amoeba Sisters. As you watch, answer the following questions.
(Video 8 on review page of class website)
91. Mitosis produces ONLY what type of cells?_
92. Why is it important that during mitosis, your cells only make identical cells?
93 Do cells divide all the time?
What is cancer?
94. In what phase of cell division to cells spend the most of their time?
95. What 3 things do cells do during interphase?
96. What percentage of time do cells spend in Interphase?
What percent of time do they spend in mitosis?
97. What two things are chromosomes made of? _
98. How many chromosomes do human body cells contain?_
In the table below, draw what each phase of mitosis looks like. Be sure to draw the chromosomes, spindle fibers, and nuclear
membrane in the appropriate phases
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
99 .
100.
101.
102.
103.
104.
MEIOSIS & GENETIC DIVERSITY
Use the following link to complete the Snurfle Meiosis and Genetics 2 Game. Read the introduction to the game by clicking through
the first two screens until you come to the main menu. Click on the "Crossing Over" tab. Answer the questions or fill in the blanks as
you move through this activity.
Crossing Over!
105. At the start of meiosis you have _
cell. At the end of Meiosis 1, you have
. At the end of Meiosis II, you have _
106. If there is no crossing over, the gametes are
identical. What is true about such a cell that does not
cross over during meiosis?
107. Remember, the letters shown represent alleles for specific genes. G and g represent two different alleles for fur color. B and b
represent two different alleles for the butterfly wing trait.
G =
B =
g =
b =
x X X
108. Since the fur color and butterfly wing.
are the same
and are
inherited together, we say the genes are
109. Crossing over occurs during_
of Meiosis I. Homologous chromosomes trade
information.
110. What trades genetic information during crossing over
111. More
results because there is more
in the possible
due to _
112. Recombination allows for more potential
of offspring.
Independent assortment - Return to the Main Menu. Click on the "Independent Assortment" tab. Fill in the blanks and answer the
questions below as you move through this section of the game.
113. Independent assortment also produces.
of gametes during meiosis. Independent assortment
refers to how the chromosomes_
during Metaphase_
and Metaphase
114. The homologous chromosomes are the
size and have the same _
115. During Metaphase I of Meiosis I, these homologous pairs of chromosomes can line up in several
ways. This is known as .
116. The way that one pair of chromosomes line up does _
- affect the way that any other pair...
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