Human genome, twin study, genetic testing

Genome project was completed in 2003, contributions came from Japan, France, Germany, China, and others. Project goals were to identify all 20,000-25,000 genes in human DNA,
determine sequences of the 3 billion chemical base pairs that make up human DNA, store this information in databases, improve tools for data analysis. Imagine how many diseases can be cured from this, never before. A normal gene may be inserted into a nonspecific location within the genome to replace a nonfunctional gene. This approach is most common.

Twins:

By studying twins and siblings and their families, we can estimate how genes and environment interact to influence character, strengths, vulnerabilities and values. Beginning in 2000, the MTFS enrolled an additional 500 pairs of twins and their parents into the MCTFR.