Developmental Problems, Some Exist in the Genes

Source: 
Medical News Today
Date Published: 
August 18, 2010
Abstract: 

DNA for each individual contains variants that are more or less common in the overall population.

Some gene variations are actually genetic deletions, where sections of DNA 'code' are missing entirely. These variants are likely to have important effects on gene function and, therefore, likely to contribute to diseases associated with that gene. But what happens when multiple genes are disrupted in a single family?