46 Marker Grandparent DNA Test
When a child is conceived, they obtain 50% of their DNA from their mother and the other 50% from their father. Oddly enough, you do not share 25% of your DNA from each grandparent. Your family tree may suggest you obtain 25% of your DNA from your grandparents. However, your genetics tells a different story about the Grand Parents DNA Test.
Humans carry 23 pairs of chromosomes, 22 autosomal pairs and one pair of sex chromosomes. A woman has two X chromosomes and men have one X and the Y chromosome, depending on what your second sex chromosome, i.e., X or Y will dictate which sex you’re.
It begins to get complicated when assessing exactly what you have been passed down from your grandparents; the percentage of DNA passed down to you from your parents is purely down to chance. What makes it difficult to judge the exact amount of DNA has been passed down is genetic recombination; this means that the DNA isn’t purely from one grandparent or the other.
During cell divisions, from the production of sperm and eggs, chromosomes exchange information with each other, thus forming hybrids. It’s an almost certainty that you have genetic contributions from all your grandparents, the question is, how much?
Reasons for taking the Grandparent DNA Test
The grandparent DNA test is often required when parents of the alleged father or indeed, the biological mother are not available. This is to test a child’s missing links in their biological relationship with the family. In this case, if the alleged father is unavailable for a paternity test, the next step is to do a grandparent DNA test of the alleged father’s parents to answer the child’s relationship to the alleged father.
However, this cannot always be the case. The grandparent DNA test can be completed with just the grandparent and the child. However, this will not give you the most conclusive and accurate results