Generation and crosses

P1

F1

F2

Back-cross

True breeding

Mendels model

Mendels First three postulates

Independent assortment

PHenotype

Genotype

Gene

Allele

Dominant

Recessive

Mendels law of segregation

Genotypic ratio (dihybrid cross)

Phenotypic ratio (dihybrid cross)

Chi square analysis

Chi square

Chi square formula

Pedigree analysis

coefficient of relatedness

Pedigree of autosomal recessive

Pedigree autosomal dominant