Question 1

Which statement about the behaviour of chromosomes during mitosis is correct?

  A  

they attach to the spindle fibres to contain them within the nucleus

  B  

they condense to prevent further translation of genes.

  C  

they reach the poles of the cell and become longer and thinner

  D  

they replicate to produce sufficient DNA to form two new nuclei

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Question 2

The statements describe events during the mitotic cell cycle:

1 - chromosomes migrate to opposite poles of the cell

2 - chromosomes arrange themselves at the equator of the cell

3 - chromosomes condense and the nuclear membrane disappears

4 - centromeres divide

What is the correct order of three of these events in the mitotic cell cycle?

  A  

2 → 3 → 4 


  B  

3 → 2 → 4

  C  

3 → 4 → 2

  D  

4 → 2 → 1

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Question 3

The diagram below shows a cell during cell division. The diploid number of this cell is three.

In which phase of cell division is the cell in the diagram above?

  A  

the cell is in telophase 1 of meiosis


  B  

the cell is in telophase of mitosis


  C  

the cell is in anaphase of mitosis


  D  

the cell is in anaphase 1 of meiosis

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Question 4

What occurs in anaphase of mitosis?

  A  

chromatids line up on the equator of the cell

  B  

chromatids reach the poles of the spindle

  C  

chromatids separate and move to opposite poles

  D  

chromatids start to coil up and become visible

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Question 5

Which is always true of cytokinesis?

1 - cell organelles replicate

2 - cell organelles are divided between two cells

3 - nuclear envelope reforms

  A  

1, 2, and 3

  B  

1 and 3 only

  C  

2 only

  D  

3 only

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Question 6

Which process occurs during prophase of the mitotic cell cycle in an animal cell?

  A  

division of centromeres 

  B  

formation of chromosomes 

  C  

replication of DNA

  D  

separation of centrioles

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Question 7

What occurs during metaphase of mitosis?

  A  

chromosomes attach to the equator of the cell

  B  

chromosomes become shorter and thicker

  C  

chromatids reach the poles of the cell

  D  

each chromosome forms two chromatids


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Question 8

Some chemicals, used to stop tumour growth, work by preventing the DNA double helix from uncoiling and separating.

During which stage of the cell cycle would they act?

  A  

anaphase

  B  

interphase

  C  

metaphase

  D  

prophase

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Question 9

Which processes occur by mitosis?

1 - cloning of plasma cells

2 - gamete production

3 - replacing damaged cells

  A  

1, 2, and 3

  B  

1 and 3 only

  C  

2 only

  D  

3 only 

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Question 10

Bacterial cells divide by a process called binary fission.

Which macromolecules must be synthesised for binary fission?

1 - cell membrane proteins and RNA

2 - DNA and peptidoglycan

3 - enzymes and cellulose

  A  

1, 2, and 3

  B  

1 and 2 only

  C  

2 and 3 only

  D  

3 only

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