AQA B1b - Stem Cells & Cell Division

When a cell becomes differentiated, it produces ________ specific to its function by turning on and off genes.

• Stem cells

• Proteins

• Characteristics

• Genes

Select the correct statement.

• Embryonic stem cells and tissue stem cells can become any type of cell.

• Embryonic stem cells can become any type of cell while tissue stem cells give rise to more limited range of cell types.

• Tissue stem cells can become any type of cell while embryonic stem cells give rise to more limited range of cell types.

• Embryonic stem cells and tissue stem cells give rise to a limited range of cell types.

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Cell Differentiation gives rise to

• stem cells

• specialised cells

Stem cell research is controversial because in involves?

• social issues
• ethical issues
• educational issues
• economical issues

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Why might stem cell research lead to a cure for diabetes?

• Stem cells can be used to grow pancreas cells that produce insulin.
• Stem cells can create babies that have normal functioning pancreases.

What is the result of mitosis?

• 1 cell
• 2 genetically identical cells
• 2 genetically different cells
• 4 genetically identical cells

How many chromosomes do humans have in a typical body cell?

• 46

• 23

• 21

• 42

Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have -

• 16 chromosomes.
• 46 chromosomes.
• 8 chromosomes.
• 4 chromosomes.

In mitosis, the two resulting cells are

• different from the starting cell and identical to each other.
• different from the starting cell and different from each other.
• identical to the starting cell and different from each other.
• identical to the starting cell and identical to each other.

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In meiosis, the four resulting cells are 

• identical to the starting cell and different from each other.
• different from the starting cell and different from each other. 
• identical to the starting cell and identical to each other.
• different from the starting cell and identical to each other.

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