Posts Tagged ‘who do you think you are’
Obviously Genealogy DNA is a search term often used to find this site. Now we want to show you what you can learn here on GenealogyDNA.com. Many people are wanting to discover their connection to their ancestors as well as living relatives. This is becoming easier and easier with modern advances in genealogical DNA testing. Read on to find out how to unlock your genetic makeup as seen on TV “Who Do You Think You Are.”
The latest theory is that your body only uses 5% of the DNA codes it has available to it. While the entire human DNA sequences have been identified, scientists are still unsure what each molecule does and exactly what each one means. These are the same scientists that first labeled the DNA sequences that can be identified as the genetic markers of a person as junk DNA.
Short Tandem Repeats in Genealogy DNA:
What is true is those scientists are still working on unraveling the mysteries locked up in our DNA. They have learned over the years how to recognize certain sequences that are now used to trace a person’s genetic history. These are the short tandem repeats (STRs) in a persons DNA. These can be identified in every person and used to trace back and connect them with their relatives, past and present.
In each person’s DNA, there are only 4 different amino acids. It is the way they are structured or assembled that decides not only their function, but how we can read them. They are named G, C, T, and A. It is the order in which they appear in the short tandem repeats that makes it possible to connect samples to their genetic relatives. Each man passes down to his son an exact copy of his Y-DNA. The mother passes her mtDNA to both her sons and daughters. These genetic markers are exact copies of the parents and are what is used to identify the ancestral heritage lines of a person’s family tree.
Polymorphism in Genealogy DNA:
Over time there is what is referred to as a polymorphism. This is where one of the short tandem repeats has a modification to it. This is when just one of the short tandem repeats is replaced with a new set of molecules. This can be just one of the amino acids or both of them. This is a very rare occurrence, but does exist, especially in the Y-DNA sequences.
When this occurs, a new linage is then branched off. This is how the male linage has become so exact in the information the scientists can provide about the sample they test. Unfortunately the mtDNA has this polymorphism even less frequent then the Y-DNA. This is why at the present time there is less detailed information available about a woman’s linage, there is less specific information being provided by the sample results. With fewer variations, the path is very straight so to say.
To give you an example of how straight the paths are is the number 37. That is the number of women for whom all present day humans can trace back their mtDNA too. Just a few years ago it was thought that there were only three. As time and research progresses, more information will become available for the identification of Genealogy DNA.
To say the least you will want to bookmark this site and visit often because whatever the newest developments are in genetic genealogy testing we will be right there to report these advances to our readers. If you want to have some fun and get in the system of testing your own DNA you can do it right here by ordering a simple DNA Testing Kit online that is so easy to do that you will wonder why you have not done it before. There is no blood test needed, just use the simple paddle device scraper that you run up and down on the inner cheek area of your mouth and seal the scraped cells and paddle up in the provided envelope and return it to the lab for your DNA test results.
This is the same sort of DNA test kit as you have seen recently on the popular NBC television series “Who Do You Think You Are”
Go ahead and order your own Genealogy DNA test kit right HERE: Family Tree DNA
Join the hundreds of thousands of other people that are in the Genealogy DNA database.
- DNA Testing for Genealogy is the Greatest Discovery (genealogydna.com)
- Family Finder DNA Test (genealogydna.com)
- Genealogy DNA Testing (genealogydna.com)