Wednesday, February 22, 2012

genes

Name at least 2 different types of cells found in your body.

Blood cells, skin cells and nerve cells



2. What are the four basic letter codes to make DNA? 


ATCG




3. What do genes do for a cell or a body?
     
tell what you are.


4. How many chromosomes do humans have?


23 pairs of chromosomes.

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