1. BELL WORK: Copy and answer the question below: What is more serious a point or a frameshift mutation? Why?

2. Test Thursday!

3. Codon Face Assignment Due Thursday 10/29

4. Sub Tomorrow You will work on an assignment that will help you get ready for our test This assignment must be completed and turned in AT THE END OF THE PERIOD TOMORROW. I Will not accept them late under any circumstances

5. Quiz passed back Answers 1)B 2)C 3)A 4)D 5)A 6) B 7) C 8) D 9) B 10) C

6. Cornell Notes Title: Differentiation Date: 10/27 Page: 44 Standard: Identify and Ilustrate changes in DNA and evaluate the significance of these changes EQ: How do cells become different from one another?

7. Who can read this sentence? Tsh edo gat eth efa tca t Tse dog ate the fat cat

8. Mutation Point (substitution) Remember read each codon as a group of 3 The dog ate the fat cat Tse dog ate the fat cat SUBSTITUTE s for h

9. Mutation Frameshift The dog ate the fat cat Tsh edo gat eth efa tca t Insert S in between the T and h

10. Mutations Original: The dog ate the fat cat Silent: The dog ate the fat cat Missense: Tse dog ate the fat cat Nonsense: Th Insertion: Tsh edo gat eth efa tca t Deletion: Ted oga tet hef atc at

11. What are stem cells? What are stem cells? Ted Talk

12. How do stem cells work? How do stem cells work? Stem Cell research

13. DIFFERENTIATION: becoming specialized; changing to serve a specific purpose/function

14. So does a heart cell have the same DNA as an eye cell?? YES

15. Well How Are they Different? They Express different genes!

16. When stem cells become specialized cells, that means they are expressing different genes. ***Bone cells, muscle cells, skin cells, brain cells, etc. are different because they express (show) different parts of the DNA instruction code (Genes).***

17. But what factors can affect gene expression? In other words, what can make cells express different genes?

18. Temperature

19. Available Water Leaves above the water are broad, but below the water are finely divided.

20. pH (acidity) Acidic soil produces blue flowers and Alkaline soil produces pink.

21. For the rest of today… Read the “To Transcribe or Translate? That is the Question…” information at your table. Use the provided scenarios to answer the remaining questions on your handout.