23andMe gene tests may provide customers looking for mutations in the BRCA breast cancer gene with false negative results ... “I didn’t meet any criteria that made me high ... Jun 23, 2:06 AM.

Genes are sections of our DNA that encode for proteins that carry out the functions of our body’s cells. Humans have approximately 22,000 genes scattered across 46 chromosomes.

Key points. Who we become is not derived solely by our genes. The environment alters gene activity through a process called epigenetics. There are many possible versions of “you” in your genome.