How many different bases does DNA have?

Which bases tend to pair together?

What is a gene?

What are proteins made of?

Describe how the order of bases in a gene determine the protein that is made

Where in the cell are genes found?

Where in the cell are proteins made?

What is messenger RNA used for?

During cell growth does the number of chromosomes double or half?

Mitosis or Meiosis?:
It's purpose is to provide new cells for growth and repair

Mitosis or Meiosis?:
It's purpose is to create gametes (sex cells)

Mitosis or Meiosis?:
The cells produced are genetically identical

Mitosis or Meiosis?:
The cells produced contain half the number of chromosomes as the parent cell

What's the name of the cell produced when two gametes combine?

In a human embryo, all cells are undifferentiated until what stage?

How are stem cells in an embryo different to those in an adult?

What determines the type of cell a stem cell becomes?

Describe how cloning could be used to make embryonic stem cells.