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Year 10 iGSCE - Biology

Mitosis worksheet

1. Fill in the blanks using some of the words

Genetically     four   egg     copies

Two    growth    damaged    parent

Mitosis is where a cell divides into __________________ cells. These new cells are ______________ identical to each other and the _____________ cell. Before a cell divides, it ____________ its DNA. Organisms use mitosis for _____________ and to replace ____________ cells.



2. State whether the following statements are true or false

     a) as a cell grows the number of organelles increases

     b) Before mitosis the chromosomes are copied so that the cell has 4 copies of its DNA

     c) When chromosomes are copied the strands of a DNA molecule separate so that new          strands can form next to them.


3. Write a short description to explain each stage of mitosis.