Mendel’s Principles of Inheritance

Inherited traits are transmitted by genes which occur in alternate forms called alleles

• Principle of Dominance - when 2 forms of the same gene are present the dominant allele is expressed
• Principle of Segregation - in meiosis two alleles separate so that each gamete receives only one form of the gene
• Principle of Independent Assortment - each trait is inherited independent of other traits (chance)