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1.
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After a chromosome is replicated, each half is called a ___________
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2.
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Two chromosomes that are very similar and carry the same genes are called
___________.
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Write the name of each phase in the space below. Use figure 2.3 to help
you. 
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3.
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Answer to number 3_____________.
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4.
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Answer to number 4_____________.
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5.
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Answer to number 5_____________.
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6.
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Answer to number 6_____________.
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7.
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Answer to number 7_____________.
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8.
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Answer to number 8_____________.
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9.
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Answer to number 9_____________.
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10.
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Answer to number 10 _____________.
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11.
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During which phase do homologous chromosomes separate? __________
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12.
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During which phase do sister chromatids separate?
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13.
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What does a sperm cell contribute to an embryo?
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14.
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What does an egg contribute to an embryo? (3 answers)
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15.
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What are polar bodies made, in the male or in the female?
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16.
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Genesis comes from a Greek word that means “to be
born”. How does this relate to the meaning of gametogenesis? (2 pts)
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17.
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What is a polar body? (2 points)
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18.
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Which of the following statements is true of homologous chromosomes?
a. | They are exact copies. | b. | They contain the same
genes. | c. | They divide during meiosis II. | d. | They connect to each
other. |
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19.
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Which phrase best describes meiosis I?
a. | duplication of paired chromosomes | b. | fusion of sister chromatids | c. | division of
homologous chromosomes | d. | creation of two diploid
cells |
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20.
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What happens to sister chromatids in meiosis II?
a. | They duplicate. | b. | They are divided. | c. | They remain
together. | d. | They do not take part. |
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21.
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Gametogenesis is the term for
a. | the production of gametes. | b. | the fertilization of eggs. | c. | the development of
polar bodies. | d. | the movement of sperm. |
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22.
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What does an egg contribute to the embryo that a sperm does not
contribute?
a. | polar bodies | b. | organelles | c. | DNA | d. | germ cells |
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23.
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How do homologous chromosomes differ from sister chromatids? (2 points)
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24.
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Explain why an egg is so much larger than a sperm cell. (3 pts)
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25.
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If, during metaphase I, all 23 maternal chromosomes lined up on one side of the
cell, would genetic diversity increase? (2 pts)
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26.
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List the key differences between meiosis I and meiosis
II. (6 pts)
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27.
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Both mitosis and meiosis are types of nuclear division, but they result in
different cell types. Describe how the steps of meiosis I differ from those of mitosis. (6
pts)
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