Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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In ____ a body part regrows and may form a new organism.
a. | fission | c. | regeneration | b. | budding | d. | sexual
reproduction |
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2.
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In DNA copying, the bonds between the nitrogen bases are broken by a(n)
a. | hormone | b. | enzyme | c. | RNA | d. | cytoplasm |
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3.
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Most of the life of any cell is spent in a period of growth called____.
a. | interphase | b. | prophase | c. | telopase | d. | anaphase |
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4.
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The chromosomes in the nucleus of a cell contain a code known as ____.
a. | tRNA | b. | mitosis | c. | meiosis | d. | DNA |
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5.
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DNA does NOT contain the nitrogen base____.
a. | adenine | b. | cytosine | c. | uracil | d. | thymine |
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6.
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A cell that has two of every kind of chromosome is ____.
a. | haploid | b. | diploid | c. | an
egg | d. | a sperm |
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7.
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Haploid numbers of chromosomes are usually found in the ____of an
organism.
a. | tissues | b. | body cells | c. | sex
cells | d. | zygotes |
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8.
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Each human skin cell has____parts of chromosomes.
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9.
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Asexual reproduction relates to humans in that
a. | none of our body cells reproduce this way. | b. | many body cells
reproduce this way. | c. | the parent cells do not
divide. | d. | meiosis occurs. |
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10.
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How are sex cells different from other human cells?
a. | Sex cells have more chromosomes. | b. | Sex cells have half as many
chromosomes. | c. | Sex cells are larger. | d. | Sex cells have no
chromosomes. |
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Matching
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Write the letter of the correct item in the space provided. a. | sex cells from female parent | b. | sex cells from male parent | c. | takes place in
reproductive organs | d. | cell that forms in
ferilization | e. | joining of two sex cells | f. | takes place in body
cells |
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11.
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____mitois
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12.
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____fertilization
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13.
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____zyote
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14.
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____eggs
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15.
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____meiosis
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16.
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____sperm
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Completion
Complete each
statement.
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17.
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The process of nuclear division that produces haploid sex cells is
____________________.
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18.
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Two sex cells join to produce a new individual in ____________________
reproduction.
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19.
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The amount of adenine in DNA always equals the amount of
____________________.
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20.
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DNA copying occurs during ____________________.
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21.
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Sex cells differ from body cells in that they do not have ____________________
of chromosomes.
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22.
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Sexual reproduction relies on meiosis instead of mitosis because only meiosis
produces ____________________ sex cells.
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Short Answer
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 Figure
4-2
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23.
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What structure is illustrated in Figure 4-2?
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24.
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What is Structure A in Figure 4-2?
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25.
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What is Structure B in Figure 4-2?
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26.
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What is Structure E in Figure 4-2?
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27.
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What is Structure F in Figure 4-2?
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28.
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What is Structure G in Figure 4-2?
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