Certain gene variants have been shown to increase the risk of having low vitamin D levels.

As mentioned in the genetic debate, it takes 300,000 gene variants to explain only 50% of something like height.

Genotyping is important in research of genes and gene variants associated with disease.

Probably almost everyone possesses many gene variants associated with adverse health effects.

There are, for example, gene variants that make people very robust against emotional trauma and stress.

Sometimes the link between a disease and an unusual gene variant is more subtle.

It does not seem to be effective in patients with other gene variants.

Once gene variants are lost, they cannot be recovered.

An individual must have many of these common gene variants in order for the risk of disease to be substantial.

The researchers did not determine the frequency of the gene variants in the population as a whole.