Life Science: Life's Structure and Function, Book A

Chapter 4: Cell Reproduction

Standardized Test Practice

1.
In which stage of the cell cycle does a eukarotic cell spend most of its life?
A)cytoplasmic division
B)mitosis
C)prophase
D)interphase
2.
What happens during mitosis?
A)A cell's organelles duplicate.
B)A cell's nucleus divides.
C)A cell's chromosomes duplicate.
D)A cell's DNA is copied.
3.
What usually happens right after a cell's nucleus divides?
A)Its other organelles divide.
B)Its DNA is copied.
C)It grows and prepares for mitosis.
D)It splits into two new cells.
4.
Which stage of mitosis is shown?

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A)anaphase
B)metaphase
C)prophase
D)telophase
5.
All of these are an example of asexual reproduction except
A)a sea star regenerating a new arm.
B)a mother dog giving birth.
C)a potato sprouting new plants from its buds.
D)a strawberry plant forming new plants with runners.
6.
How many sex cells result from both meiosis I and meiosis II?
A)4
B)1
C)2
D)3
7.
Cells that have half the number of chromosomes as body cells are called
A)diploid.
B)polyploid.
C)haploid.
D)zygotes.
8.
If a sex cell has 12 chromosomes, how many chromosomes will there be after fertilization?
A)24
B)6
C)12
D)48
9.
What do the structures labeled with letters represent in the diagram?

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A)chromosomes
B)proteins
C)nitrogen bases
D)mRNA molecules
10.
What does this diagram illustrate?

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A)cell reproduction
B)DNA duplication
C)protein synthesis
D)meiosis
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