2007-01-10 21:18:52 · 8 answers · asked by JAMES 4 in Science & Mathematics ➔ Medicine
I don't think the previous answers addressed the question you asked. All the cells in your body have the same DNA. The organs are different because different genes are working (turned ON or OFF) in those cells, demonstrating different properties, such as heart cells instead of skin cells.
2007-01-10 21:32:21 · answer #1 · answered by joanmazza 5 · 0⤊ 0⤋
Despite answerer #2's answer, in general, a human has only one DNA pattern all throughout his body...
A twin dying leaving minute traces of DNA in the mother or in his twin is a very rare case...besides, if it were the dead twin has almost the same DNA with the other twin and with his mother since they are all relatives to a first degree...similarities in the DNA codes are very significant in first degree relatives...
about answerer#3's answer, these are just very rare cases....
2007-01-10 21:28:29 · answer #2 · answered by karl 4 · 0⤊ 0⤋
what alot of the other people have alluded to is called chiamerism (my spelling is atrocious). when a person has two sets of dna due to absorbing a twin in utero. and it is extremely rare...
the two other answerers who mentioned mitochonrial dna and organs being the same just with different genes turned on were 100% correct.
2007-01-11 10:20:10 · answer #3 · answered by pele 4 · 0⤊ 0⤋
I think what you may be talking about is mitochondrial DNA. All cells in our bodies generally contain the same DNA which is a combination of our mothers and father's DNA pattern. However our mitochondria contain what is known as mitochondrial DNA and it is different from our nuclear DNA. Mitochondrial DNA is only inherited from the mother as the mitochondrial DNA in the sperm is in its tail which is left behind when the egg and sperm. Mitochondrial DNA is therefore an exact replica, in most cases, of the mitochondrial DNA of our mother; whereas our nuclear DNA is a combination of the nuclear DNA from both parents. Normally when we refer to DNA we just think about nuclear DNA, however if you are going for DNA testing you may also look into mitochondrial DNA testing if you are wanting to look into your mother's side of the family or for maternally inherited diseases. Hope this helps.
2007-01-10 22:09:47 · answer #4 · answered by Anonymous · 0⤊ 0⤋
I JUST WATCHED ABOUT THIS CALLED "I AM MY OWN TWIN" IT IS WHERE THIS MOM WAS TESTED TO SEE IF HER DNA MATCHED HER CHILDREN FOR WELFARE PURPOSES AND THEY SAID THE HER KIDS WERE NOT HERS. SHE WAS PREGNANT WITH 3RD CHILD AND THE COURT HAD SOMEONE THERE TO TEST HER AND THE BABY AT BIRTH AND SURE ENOUGH SAME THING HAPPENED.
IT WAS ON THE DISCOVERY CHANNEL AND IT SAYS IT IS WHEN THE TWO EMBRYOS FUSED TOGETHER AND I DON'T RECALL NAME OF SYNDROME.
MEANWHILE THERE WAS ANOTHER WOMAN THAT NEEDED A KIDNEY TRANSPLANT AND IT WAS DISCOVERED THE SAME THING ABOUT HER CHILDREN. SCIENTIST DISCOVERED THAT SHE HAD CERTAIN ORGANS WITH ONE DNA AND THE OTHERS THE SAME AS HER CHILDREN.
2007-01-10 21:26:38 · answer #5 · answered by baptism_by_fire_2000 6 · 0⤊ 0⤋
It has been medically proven that a very, very, very small percentage of the population has two sets of DNA. This is believed to be caused when there are twins in the womb and one dies and is reabsorbed. The twin that is left can still contain some of the other twin's DNA.
2007-01-10 21:22:30 · answer #6 · answered by bashnick 6 · 0⤊ 2⤋
every cell in your body has the same DNA
2007-01-10 21:21:47 · answer #7 · answered by Dashes 6 · 0⤊ 0⤋
who said that its not true one person has one DNA
2007-01-10 21:27:02 · answer #8 · answered by Preet_Answers 2 · 0⤊ 1⤋