Genotypes are described as homozygous if there are two identical alleles at a particular locus. Alleles contribute to the organism's phenotype, which is the outward appearance of the organism.
THE Major Genetic Risk Factor Mitigated by Choline Supplementation
Urinary MMA is a Superior Test For Detecting B12 Deficiency, and for Good Reason.
The MMA Test Teaches a Lot About Why B12 is So Important for Energy