does anyone know how many generations a family's DNA lasts?

Question

you guys gave me really good answers!

Answer 1

In till it gets to its minimum capacity of space.
With each new offspring chromosomes are passed on by the two parents.


So lets say your 50% of your mom and dad gentically.
Then your son/girl would be 25% of your mother and fathers Dna.
And your offsprings child would be 12% of your parents, etc.

Answer 2

There are mutations with each passing generation, but the DNA will leave a trace all the way back to the beginning. Just check out some of the sites, such as www.familytreedna.com

Answer 3

Well I'm assuming a long time here your Y-Dna which is the dna passed from father to son goes back a very long time, I'm talking thousandths and thousandths of years. . I've never done the mtdna which is passed from mother to daughter I'm sur eits probably just about the same when its comes to its span of years it a little harder to read but can be useful someways. If your looking for companies that do genetic testing I used Familytreedna in Houston,Texas great work and they have the largest DNA database that I know of. Anyways hope this answers your question :)

Answer 4

They got DNA of dinosaurs so imagine the span. About a hundred thousand years preserved in ice and less than that anywhere else. Pretty cool

Answer 5

as long as u are descendents, of the person u will have their dna and if u reproduce they will have the descendents dna. but if u decide not have kids of your own the dna will end with u as long as u have no brother or sisters who have kids of their own...

Answer 6

I have a webpage that explains alot about DNA testing and what it can and cannot tell you...

http://www.coolrogue.net/genealogy/dnatestingpt1.html

Answer 7

forever.