Mendel's Experiments and Probability

1. Gregor Mendel, the "Father of Genetics"

Blending vs. Particulate Inheritance

 

Pea Plants (traits)

 

2. Mendel's Experiments

True-breeding / Hybrids

 

Cross Pollination / Self Pollination

 

Monohybrid Cross

 

Dominant / Recessive

 

Heterozygous / Homozygous

 

F1 vs F2

 

Genotype / Phenotype

 

3. The Test Cross

Cross a recessive to an unknown

The offspring proportion tells you what the unknown was

4. The Dihybrid Cross

RrYy x RrYy (show gametes)

 

Punnett Square (4x4)

 

 

9:3:3:1 Ratio

 

 

5. Mathematical Solutions are faster

Sample Problem: RrPp x rrpp

 

 

 

 

 

 

 

6. Big Ideas

Law of Independent Assortment

 

Law of Segregation

 

Law of Dominance and Recessiveness

 

Probability

 

Chromosome Theory of Inheritance