" The Big Picture!" by Mr C

Last lessons

1)    Collaborative Treasure Hunt

2)    Wikipedia “aha” reading response

3)    Next class quiz

2)    Defining Population Evolution

3)    Hardy Weinberg formula

Number One

Defining Population Evolution

https://www.boundless.com/biology/textbooks/boundless-biology-textbook/the-evolution-of-populations-19/population-evolution-130/defining-population-evolution-527-11733/

How many definitions about evolution talk about genes?

What exactly is a “gene”

Looking at the above link, record key terms and try to create an example of each.

How do you suppose these “terms” link to key points?

How do these terms link to previous case studies in the class?

Work:

a)   Definitions from board, text and link

b)   Text Question pg 182

Mendel and Darwin

https://www.youtube.com/watch?v=WhFKPaRnTdQ

Number Two

The Hardy Weinberg Formula

https://www.youtube.com/watch?v=xPkOAnK20kw

What must occur for evolution not to occur?

Linking ideas like allele

Plan A: Going from Population Phenotypes to Genotype

Plan B: Going from Genotype to Phenotype

Key tricks to solving questions

1)    In a population and looking at phenotype, always use the number of organisms that do not show the trait. Example, if 80 of 110 plants show dominate trait, calculate the allele frequency. So 110 minus 80 are purebred recessive or “aa”.

2)    When you are given the dominant allele frequency, calculate the recessive allele frequency first. Example the dominant allele frequency is .65. If the whole population is 1 and you subtract .65 from 1, the recessive allele frequency is .35 for the population.

Number Three

Video

https://www.youtube.com/watch?v=oG7ob-MtO8c

Practice

http://study.com/academy/practice/quiz-worksheet-hardy-weinberg-equilibrium-equation.html

Chapter 6