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 enzyme is coded by the gene with the symbol MTHFR on chromosome 1 location p36.3 in humans. There are DNA sequence variants (genetic polymorphisms) associated with this gene. In 2000 a report brought the number of polymorphisms up to 24.he MTHFR nucleotide at position 677 in the gene has two possibilities: C (cytosine) or T (thymine). C at position 677 (leading to an alanine at amino acid 222) is the normal allele.