1
1 mark
1 markWhat does the term haploid mean?
A nucleus containing two sets of chromosomes.
A nucleus containing a single set of chromosomes.
A person with only one X chromosome.
A person with XXY chromosomes.
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Nuclear Division (Cambridge O Level Biology)
Topic Questions
21 mark
1 markWhen a somatic (body) cell undergoes cell division, two daughter cells are produced with the same chromosome number as the parent cell.
Which type of division has taken place?
Meiosis producing genetically different cells.
Mitosis producing genetically identical cells
Meiosis producing genetically identical cells.
Mitosis producing genetically different cells.
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11 mark
1 markExtended
Which row in the table shows a comparison between meiosis and mitosis?
| mitosis | meiosis | |
| A | produces 4 daughter cells | produces 2 daughter cells |
| B | produces genetically identical cells | produces cloned cells |
| C | daughter cells are diploid | daughter cells are haploid |
| D | two cell division occur | four cell divisions occur |
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21 mark
The diagram shows the chromosomes in a cell nucleus.
Which diagram shows the product of one division of the cell nucleus by mitosis?
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11 mark
1 markNew cells are formed by the division of existing cells.
The diagram below shows four different cells.
Which one is formed by meiosis?
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21 mark
1 markExtended only
The diagram below shows the process of sexual reproduction.
Which of the processes are shown by stages Q and R?
| Q | R | |
| A | meiosis | mitosis |
| B | mitosis | mitosis |
| C | meiosis | meiosis |
| D | mitosis | meiosis |
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