Unit 6: The Cell Cycle
Honors
THE CELL CYCLE
1.
The collection of stages in a cell’s life is called the ___________________________________.
2.
Chromatin is ____________________________________ and is present during the _____________________
stage of the cell cycle.
3.
Draw and label chromosome structure: chromatid, centromere, genes (bands on the chromosome).
4.
How are chromosomes, genes and DNA related? _____________________________________
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5.
What are homologous chromosomes?
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6.
Draw a pair of homologous chromosomes. How many chromatids make up a pair of homologous chromosomes?
7.
Why do we have 23 PAIRS of chromosomes in our body cells?
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8.
What is a karyotype? _________________________________________________________
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9.
How can you determine gender and the presence of genetic abnormalities by looking at a karyotype? What are the
chromosomes that represent the different genders.
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10.
What are 3 ways you know chromosomes are paired together on a karyotype? _______________
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11.
What are 2 functions of a karyotype? _____________________________________________
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12.
List the 2 main parts of cell cycle: ___________________________________________________
13.
What 2 events happen during interphase?
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14.
What is mitosis? ____________________________________________________________
15.
What is meiosis? ____________________________________________________________
16.
Body cells contain ______ chromosomes while sex cells contain _______ chromosomes.
17.
What is the difference between haploid and diploid cells? ______________________________
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18.
What are two ways that meiosis mixes up genetic information?
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19.
Describe each of the 4 stages of mitosis. Describe how would you be able to identify them?
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20.
What is the function of the centrioles? ___________________________________________
21.
How many chromosomes does a body cell start with? End up with after mitosis?
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22.
Describe what happens during each phase of meiosis (I and II).
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23.
What is a tetrad? ___________________________________________________________
24.
What is crossing over and when during meiosis does it occur?
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25.
Why is meiosis important? _____________________________________________________
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26.
What are the main differences between mitosis and meiosis in terms of the following.
a) number of chromosomes (single or double) at the beginning
b) how they line up during metaphase
c) their separation
d) number of chromosomes (single or double) at the end
e) number of cells that are made
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