Heredity - Genetics

2. Genes - how do they work?

Now that you have been introduced to the building blocks of a human, you will need to become familiar with a few important terms used by geneticists and with how traits, characteristics and diseases show up in a person.  

This section will discuss genes, and their role in heredity.  Learn the difference between alleles ( different expressions of a trait) and genes.

Watch this to learn the difference between phenoypes and genotypes.  Phenotypes are the visible expression of a gene
(blue eyes) and genotypes are the actual combination of genetic information (alleles).