Cell Reproduction Practice Questions
1.
2.
3.
4.
State the two stages of the cell life cycle.
List three reasons why cell division is important.
Explain the difference between cell division and cytokinesis.
a) Match the labels to the diagram of the chromosome.
(centromere, chromatid, gene)
b) Has the DNA in the chromosome been duplicated? Explain.
5. List the stages of mitosis.
6. Put numbers in the boxes to show the order in which the
following events occur in body cells.
• Each centromere splits apart and sister
chromatids are pulled to opposite poles as the
spindle fibres shorten.
• Chromatids at opposite poles, unwind and becoming
less condensed (and visible).
• The nuclear membrane and nucleolus reform.
• Cell undergoes rapid growth
• DNA replicates to create an identical copy called
a sister chromatid
• Two chromatids join by a centromere to form a
chromosome
• Spindle fibres from both centrosomes connect to
the centromere of each chromosome
• The chromosomes align along the centre of the
cell (equator)
• Chromosomes condense
• The nuclear membrane breaks down
• The nucleolus disappears.
• Centrioles move to the opposite poles
• A spindle apparatus begins to form
7. Briefly described the main differences between meiosis and mitosis.
8. Compare and contrast haploid and diploid. Use the number of chromosomes in humans as an
example. What kind of cells are at the end of mitosis, haploid, or diploid? At the end of meiosis?
Why is this important?
9. Define allele.
10. Define tetrad.
11. Define zygote.
12. Explain what is meant by crossing-over. Using a diagram to support your answer. Describe why it
is important.
13. List with a breif description three strategies organisms used to reproduce their DNA.