Help me understand genetics?

On this site you can find information about Genetics:

Cells and DNA Cells, genes, and chromosomes

How Genes Work Proteins, cell growth, and cell division

Mutations and Health Gene mutations, chromosomal changes, and conditions that run in families

Inheriting Genetic Conditions Inheritance patterns and understanding risk

Genetic Consultation Finding and visiting a genetic counselor or other genetics professional

Genetic Testing Benefits, costs, risks, and limitations of genetic testing

Gene Therapy Experimental techniques, safety, ethics, and availability

The Human Genome Project Sequencing and understanding the human genome

Genomic Research Next steps in studying the human genome