1. Gregor Mendel Father of Modern Genetics

2. Gregor Mendel Father of modern Genetics

3. Mendel’s Experiment

4. Crossed two tall plants Tall x Tall = All tall

5. Mendel’s Experiment Crossed two short plants –Short x Short = All short

6. Mendel’s Experiment Crossed Tall and Short plants Tall x Short = All Tall Tall x Tall =75% Tall & 25% Short

7. Mendel’s Experiment

8. Mendel’s Findings –There are two factors that control every trait (genes) –Different forms of those genes are called alleles

9. Mendel’s Findings The rule of Dominance. –Dominant Genes: Some genes dominate over other genes. (Tall) (T) –Recessive Genes: Some genes are dominated over (Short) (t)

10. Mendel’s Results

11. Law of independent assortment

12. Mendel’s Findings The Law of Segregation –The two genes for a trait separate into different gametes (sex cells) during gamete formation (Meiosis)

13. Important Vocabulary –Genotype:The gene combination an organism has for a trait. Homozygous Dominant: Both genes are the dominant Allele (TT) Homozygous Recessive: Both genes are the recessive allele (tt) Heterozygous: Both genes are different (Tt) –Phenotype: How the gene combinations show or are expressed