1. Lesson 39 Gregor Mendel

2. Activator
In your notebook draw a family tree as far back as you can go.
At least go back to your grandparents
Is there a trait that you can think of that appears in more of your family members
Ex. Hair type, Hair color, Eye color, Cleft chin, dimples, etc

3. The Father or Genetics Gregor Mendel (1822-1884)
Studied the inheritance of traits in pea plants
Developed the laws of inheritance
Mendel's work was not recognized until the turn of the 20th century

4. His Work Mendel cultivated and tested thousands of pea plants
He found that the plants' offspring retained traits of the parents

5. Particulate Inheritance
Mendel stated that physical traits are inherited as “particles”
Mendel did not know that the “particles” were actually Chromosomes and DNA

6. Why Peas? Can be grown in a small area Produce lots of offspring
Produce pure plants when allowed to self-pollinate several generations
Can be artificially cross- pollinated

7. Studying Peas Mendel tested 7 traits: Flower color Flower position
Seed color
Seed shape
Pod shape
Pod color
Plant height

8. Mendel and his Peas https://www.youtube.com/wa tch?v=Mehz7tCxjSE
Sneak preview into tomorrow
Brain break