So are
several other gene variants.
Not exact matches
In all, the study included the data of more than 23,000 people to show that approximately 12 percent of a person's variation in delay discounting can be attributed to genetics — not a single
gene, but numerous genetic
variants that also influence
several other psychiatric and behavioral traits.
The
other finding was of a
variant near
genes for
several so - called semaphorins, proteins that guide developing nerve cells as they grow toward their final targets.
Scientists have confirmed one
gene variant and have identified
several others that may be risk factors for late - onset Alzheimer's disease, the most common form of the disorder.