100 acres Holy Cross, IA 100 acres of prime hunting ground in Dubuque County. Native grasses, wildflowers, and food plots create an oasis for whitetail, turkey, and pheasants to thrive.
There are many combinations of MTHFR: 1  Homozygous: means you have both copies of either the 677 mutation, or the 1298 mutation, one from from each parent. 2  Heterozygous: means you have one copy of either the 677 mutation, or the 1298 mutation, plus a normal one from the other parent.ore than one mutation of the MTHFR gene. Genes are passed down by your mother and your father. Most literature states there are a good 40-50 different mutations of this important gene which could be passed down by one, or both or your parents.
The MTHFR Gene. There are currently a total of 34 mutations in the MTHFR gene. The MTHFR gene sits on Chromosome 1. There are two key variants we test for (as at this stage there is little or no research on the others). SNPs that we currently test for: MTHFR C677T; MTHFR A1298C; Heterozygous = 1 copy of the gene from either parent Homozygous = 1 copy of the gene from each parent. MTHFR C677T Heterozygous = 40% loss of function * MTHFR C677T Homozygous = 70% loss of function * MTHFR A1298C Heterozygous = 20% loss of function (research not known) MTHFR A1298C Homozygous = 40% loss of function **