2. Aim: Why do different cells produce different proteins?

3. LO: SWBAT understand why different cells produce different proteins DN: h/0 genetic disorders HW: review questions- genetics Test Wednesday- genetics

4. Do all the cells in your body have the same DNA? YES!!! they all came from a single cell which replicated its DNA

5. Body Cells Although every cell in your body has the same DNA, not all cells are the SAME. Why?

6. Gene Expression different cells EXPRESS different portions of the genetic code (genes).

7. Gene Expression Though all genes of the genome are present in every type of cell, only a small, specific fraction of these genes are actually expressed in each type of cell. Genes that are being expressed are “on”

8. How does a gene express itself? Making Protein The Information on DNA (expressed genes) is Translated Into proteins which Determine the organism’s traits.

9. Environmental Effect Environmental factors such as temperature, pH, and availability of nutrients can influence the genes expressed in a cell. Examples: Himalayan Rabbits Hydrangea

10. If a small section of fur is shaved from a Himalayan Rabbit, the fur will grow back either white or black depending on the temperature of its environment.

11. GENES + ENVIRONMENT = TRAITS

12. Express the following gene: GGCTTAACGTAC mRNA codon