1. 1/15/16
Journal
Discussion Questions
Please compare and contrast Darwin and Lamarck’s evolutionary
ideas. Use your textbook.

2. Reminders
Review your discussion questions and ppt notes ~5 min each night for the daily quizzes.
Root Quiz January 20th
Evolution & Taxonomy Exam on the 21st- chapters 14, 15, and 17
**Science Fair- Shuttle at 12:40 today in the back bus loading zone

3. QUIZ 1st period Clear your desks of everything
QUIZ 1st period
Clear your desks of everything
Do NOT write on the quiz please
Use CAPITAL letters please
Keep your answers covered
If you need to make up a quiz due to an absence… let me know
Flip it over when you are finished and hang on to it.

4. Quick Notes about Natural Selection
Four ways natural selection can act on a population
1. Stabilizing Selection where the average phenotype is selected for

5. Quick Notes about Natural Selection
Four ways natural selection can act on a population Directional Selection where one of the extremes in phenotype is selected for

6. Quick Notes about Natural Selection
Four ways natural selection can act on a population Disruptive/Diversifying Selection where both of the extremes in phenotype is selected for

7. Quick Notes about Natural Selection
Four ways natural selection can act on a population Sexual Selection- Based on the ability to attract
a mate. Usually males and females differ a lot.
Ex: Peacocks.

8. I. Natural Selection causes populations to evolve
There are other mechanisms that cause evolution:
II. Mutation
III. Gene Flow (immigration, emigration)
IV. Recombination of chromosomes during gamete formation
AND
V. Genetic Drift – which are just chance events. Bad luck not bad
genes!
Examples:
A. Founder effect – where a small
segment of a population is displaced to a new area
B. Bottleneck effect- a natural disaster leaves a few
survivors (hurricane, fire, tornado, flood, etc)

9.
1st needs

10. Today’s Objective: Objective:
To Review Evolution by analyzing a Bill Nye clip.
If time remains, to recognize and calculate the frequency of alleles in a population over time to determine if evolution is occurring

11. Greatest Discoveries with Bill Nye “The Origin and Evolution of Life”
Complete the handout as we watch

12. Hardy- Weinberg ppt – If time remains today
Just listen….no fill in the blank notes
for this

13. Hardy – Weinberg The Equations:
To calculate allele frequency use p + q = 1
To calculate genotypic frequency use the top equation
Round to the nearest tenth
P = dominant allele frequency q = recessive allele frequency
p2 = homozygous dominant frequency
Q2 = homozygous recessive frequency
2pq = heterozygous frequency

16. Hardy-Weinberg Practice
Handout you picked up at the door.
Work in your assigned groups to complete the rest of the problems.
SKIP SAMPLE 3

17. EXIT TICKET Please define evolution and give an example?
Please explain microevolution and give an example
Please describe speciation and give one way it can occur.
Please compare and contrast natural and artificial selection