If yes - could this also mean that you might have been walking around a thousand years ago?
2007-12-13 09:47:07 · 7 answers · asked by ricnoodle 4 in Science & Mathematics ➔ Biology
I agree with Brandon. Possible, but very, very, very improbable. Even if it did occur, though, it wouldn't have been YOU walking around.
Genetics lay down the blueprints for life, but development, especially mental development, depends on so many environmental factors (pre-natal environment, activity levels, exercise, diet, social interactions, learning, experiences, etc). These factors are so variable and so complex that the chances of being exposed to the same set would be next to zero (less than finding someone with the same genetic code, most likely).
Incidentally, this is why, if you were able to clone yourself, your clone wouldn't be exactly like you. It would be born as a normal baby (similar to in vitro fertilization), with none of your memories or acquired experience. It would probably be similar to you, since genetics would lead to some common predispositions, but it would have grown up under different circumstances. It would be like an identical twin separated at birth, albeit one with (possibly) a different birth mother and having grown up during a different period in time.
2007-12-14 07:58:38 · answer #1 · answered by andymanec 7 · 0⤊ 0⤋
no and no beacuse everyone has a diffrent genetic code. even identical twins are proven to have difrences that are not the exact as their twin. so no you could not have been walking around 1,000 yrs. ago. some dna might be so close to the same that you would think that but... if you study a bit longer you will notice even the slightest of slightest diffrence. if there is a falter IN the dna then that person might have a genetic disorder... enough info? i was learning all this a bit ago and i was asked a ques. quite the same but... hav fun!
2007-12-13 17:55:03 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Ok I'm not great with probabilities here, but I'll try. Supposing two options for a gene with equal distributions, would give a .5 chance of each being inherited. What are they saying they're are 20,000 different genes now? The number changes all the time. Anyhow you odds of getting a particular set of genes would be .5 to the 20,000th power. So I mean its not impossible, but very improbable.
So your odds would be in about 1X10 e10,000. It'd be like hitting the lottery everyday for the next four years. Assuming your odds of hitting the lottery are 1 in a million.
2007-12-13 17:59:06 · answer #3 · answered by brandon r 3 · 1⤊ 0⤋
Actually human DNA does have limits to differentiating. Granted to find two alike DNA carriers is over 1 and several million, their is always an outside chance of a perfect match. For example, in paternity testing the results are never 100% cconclusive, they are always something like 99% accurate.
2007-12-13 17:57:35 · answer #4 · answered by Anonymous · 1⤊ 0⤋
No because as spear said no two people have the same DNA, they are like fingerprints that is what makes you, you.
2007-12-13 17:57:29 · answer #5 · answered by taffyowner917 2 · 0⤊ 0⤋
No one has the same DNA. It's like fingerprints.
I_Spearedyou - have you helped a friend today?
2007-12-13 17:50:17 · answer #6 · answered by Anonymous · 1⤊ 0⤋
No---spear is correct.
2007-12-13 17:51:15 · answer #7 · answered by Jesse Rocks 4 · 1⤊ 0⤋