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Gregor Mendel

Gregor Mendel. Father of Modern Genetics. Gregor Mendel. Father of modern Genetics. Mendel’s Experiment. Mendel’s Experiment. Crossed two tall plants Tall x Tall = All tall. Mendel’s Experiment. Crossed two short plants Short x Short = All short. Mendel’s Experiment.

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Gregor Mendel

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  1. Gregor Mendel Father of Modern Genetics

  2. Gregor Mendel Father of modern Genetics

  3. Mendel’s Experiment

  4. Mendel’s Experiment • 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

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