1. 1/18 & 1/19 - 7 th Grade Agenda Collect HW Genetic Activities Worksheet Collect Late Science Fair Background Human Traits Genetic Traits Activity Video: Ligers + Hybrid Animals Pass Back HW & Test & Grade Printout Text Book Reading: 192 – 198 HW: Reading & Notetaking p. 101 – 104 HW: Signature on Grade Printout Reminder Procedure, Data Table, Graph & Results due 2/9 & 2/10 (15 Points) Last Day to Turn in Latework for this Semester 1/20 & 1/21

2. Reflection Prompt: Draw and write 3 features about a hybrid animal you would like to create.

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

4. Step 1 in Protein Synthesis Messenger RNA Production

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

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

7. Step 4 in Protein Synthesis Protein Grows

8. Mutation

9. 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

10. 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

11. Ligers = Male Lion + Female Tiger

12. More Ligers

13. Tigon = Male Tiger + Female Lion

14. Zorse = Male Zebra + Female Horse

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

16. Wolfdog = Wolf + dog

17. House Cat + African Cat African Cat

18. Tangelo = Tangerine + Grape Fruit

19. Some human traits are controlled by a single gene that has more than two alleles Blood type is controlled by three Alleles What are the major human blood types? A, B, AB & O Which human blood type is a universal donor? Blood Type: O

20. Many human traits are controlled by many genes Four genes control height in humans Skin, eye and hair color are controlled by multiple genes

21. What are the Female Sex Chromosomes? XX

22. What are the Male Sex Chromosomes? XY Because there is some missing genetic information in the “Y” chromosomes, Males are more likely to get a sex-linked trait

23. Who determines whether the child is a boy or a girl ? Father

24. How many pairs of chromosomes do humans have? 23

26. Scientific Process Observe Pose a Question Develop a Hypothesis Predict Experiment and collect data

27. Scientific Inquiry Scientific Inquiry refers to the diverse ways in which scientists inve_______ the natural world and pose expl__________ based on the evidence they gather. stigate anations

28. 1 st Step: Posing Questions Scientific Inquiry often begins with a problem or question about an obse_________. rvation

29. 2 nd Step: Hypothesis Hypothesis is a possible expl_______ for a set of observation or answer to a scientific question anations

30. 3 rd Step: Design an Experiment An experiment in which only one var______ is manipulated at a time is called a controlled experiment Why is only one variable manipulated? iable

31. 4 th Step: Collecting and Interpreting Data Data are the facts, figures, and other evi_______ gathered through observations. It is usually a data or a chart dence

32. 5th Step: Drawing Conclusions A conclusion is a summary of what you have lea_____ from an experiment. rned

33. 6th Step: Communicating Communicating is sharing of ideas and experimental findings with others through writing and sp______. eaking

35. pH pH: means potential of hydrogen (Positive Ion) –Scale goes from 0 to 14 –0: Very acidic (hydrochloric acid) –7: Neutral (Water) –14: Very basic or alkaline (Drain Cleaner)

36. What are properties of an acid? It tastes sour It reacts with metals and carbonates It turns blue litmus red.

37. What are some common use of acids ?

38. What are properties of a bases? It tastes bitter Slippery feel Reacts with acids Turns red litmus blue

39. What are some common use of bases ?