Cells are the basic unit of life, and all living things are made of cells.
Example: "A human is made of trillions of cells, while bacteria are made of just one cell."
Quiz: What is the basic unit of life?
Prokaryotic cells (like bacteria) do not have a nucleus, while eukaryotic cells (like human cells) do.
Example: "Your body is made of eukaryotic cells, but bacteria are made of prokaryotic cells."
Quiz: What type of cell has a nucleus?
DNA contains genetic instructions that determine traits.
Example: "You inherit half of your DNA from your mother and half from your father."
Quiz: What carries genetic instructions in a cell?
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