Anomalies in the number of sex chromosomes Illustration Play

Boy or girl? Animation Play

Chromosomes and alleles Slideshow Play

Co-dominance – roan coat colour in horses Animation Play

Co-dominance – sickle-cell anaemia Slideshow Play

Colour blindness Simulation Play

Comparison of female and male human karyotypes Chart Play

Departures from Mendel's first law: co-dominance Student activity Play

Departures from Mendel's first law: co-dominance Whiteboard exercise Play

Development of sexual characteristics in offspring Slideshow Play

Dihybrid crosses and Mendel's second law Student activity Play

Dihybrid crosses and Mendel's second law Whiteboard exercise Play

Epistasis Whiteboard exercise Play

Epistasis Student activity Play

Examples of monohybrid inheritance of genetic disorders Whiteboard exercise Play

Examples of monohybrid inheritance of genetic disorders Student activity Play

Gene interaction and the expression of new traits Simulation Play

Gene interaction and the expression of new traits Student activity Play

Genetic pedigrees Slideshow Play

Genotype and phenotype Student activity Play

Genotype and phenotype Whiteboard exercise Play

Genotypes of the blood groups Whiteboard exercise Play

"Hereditary factors" and alleles Whiteboard exercise Play

"Hereditary factors" and alleles Student activity Play

Human sex chromosomes Simulation Play

Huntington's chorea and cystic fibrosis Slideshow Play

Inheritance in dihybrid crosses Slideshow Play

Inheritance of a single trait Class activity Play

Inheritance of a single trait Whiteboard presentation Play

Inheritance of colour blindness and other sex-linked traits Whiteboard exercise Play