Study of heredity

Gene

Allele

Locus

Genotype

Phenotype

Types of Alleles

Mendel and the Principles of Inheritance

Results of Mendel's Experiments

Gametes

Law of Segregation
(first rule of Mendel's Principle)

Law of Independent Assortment
(Second rule of Mendel's principle)

Monohybrid cross

Test cross

Inheritance with Multiple Alleles

Human Blood Group
(Genotypes & Phenotypes)

Many genetic diseases in humans are due to recessive alleles of autosomal genes

Some genetic diseases are due to dominant alleles of autosomal genes

Sex Determination in Human

Some genetic diseases are sex-linked

Some genetic diseases are due to co-dominant alleles

Dihybrid Cross

Linked V.S. Unlinked Genes

Linked Genes

Recombination

Example of Crossing-Over of Linked Genes

How to represent recombinants
in terms of notation?

Chi-Squared Test

Equation of Chi-Square

Types of Variations

Polygenic Inheritance

Example of Polygenic Variation