1. 1/9 & 1/10 - 7 th Grade Agenda Learning Objective: Learn about Human Traits Collect HW Genetic Activities Worksheet Passback HW & Grade Printout Video: Hybrid Animals Text Book Reading: 192 – 198 HW: Reading & Note taking p. 101 – 104 HW: Signed Grade Printout Reminder HW: Science Fair Background due 1/14 & 1/15 (10 Points) Last day to turn in late work for the semester: 1/14 & 1/15

2. Last Day to Turn in Latework for this Semester 1/14 & 1/15

3. Reflection Prompt: Write 2 differences between DNA and RNA

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

5. Mutation

6. 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

7. 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

8. Ligers = Male Lion + Female Tiger

9. More Ligers

10. Tigon = Male Tiger + Female Lion

11. Zorse = Male Zebra + Female Horse

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

13. Wolfdog = Wolf + dog

14. House Cat + African Cat African Cat

15. Tangelo = Tangerine + Grape Fruit

16. 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

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

18. What are the Female Sex Chromosomes? XX

19. 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

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

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