1. 1/13 & 1/14 - 7 th Grade Agenda Collect HW: Reading & Notetaking 99 - 100 Science Fair Background Presentations Mutations and Hybrid Animal Video: Bill Nye Genes HW: Genetic Activities Worksheet Reminder Procedure, Data Table, Graph & Results due 2/9 & 2/10 (15 Points)

2. Reflection Prompt: What is the difference Mitosis and Meiosis

3. Lunch with a Scientist: Friday Room 235 Write 10 facts & get 3 extra credit points.

4. Science Fair Background Presentations (10 Points) Prompt: What 3 interesting facts you learned during the Science Fair Background presentations.

5. Meiosis Meiosis is the process by which the number of chromosomes is reduced by h____ to form sex cells – spe___ and eggs. alf rm

6. Meiosis Meiosis I Meiosis II

7. Protein Synthesis Cells use information from a gene on a chrom_________ to produce a specific protein. osome

8. RNA Before protein synthesis can take place a “messe____” carry the genetic code from the DNA inside the nucleus into the cytoplasm. This genetic messenger is called ribonucleic acid or RNA nger

9. RNA

10. DNA vs RNA Master Copy Two Strands Never leave nucleus Copy One Strand Leaves the nucleus DNA RNA

11. Step 1 in Protein Synthesis Messenger RNA Production

12. Step 2 in Protein Synthesis Messenger RNA attaches to a Ribosome

13. Step 3 in Protein Synthesis Transfer RNA attaches to a Messenger RNA

14. Step 4 in Protein Synthesis Protein Grows

15. Mutation

16. Mutation means “cha_____” in Latin Mutation can cause a cell to produce an incorrect pro____ during protein synthesis. As a result, the organism’s trait, or pheno____, may be different from what it normally would have been. nge tein type

17. Hybrid Animals Horse Donkey Mule All male and most female mules are infertile More intelligent than a donkey More endurance than a horse Requires less food than a horse

18. Ligers = Male Lion + Female Tiger

19. More Ligers

20. Tigon = Male Tiger + Female Lion

21. Zorse = Male Zebra + Female Horse

22. Wholphin = Dolphin + False Killer Whale Wholphin False Killer Whale Dolphin

23. Wolfdog = Wolf + dog

24. House Cat + African Cat African Cat

25. Tangelo = Tangerine + Grape Fruit