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Why is it virtually impossible for two people who aren't twins to have the same DNA?
Wiki User
∙ 14y ago
Human DNA is very complex with a very large number of genes and a lot of diversity in certain genes. Therefore, when DNA is mixed from two individuals it is virtually impossible for the mixture to be the same every time in the small number of offspring produced in the lifetime of humans. Further, there are two reproductive factors that make it statistically improbable to have the exact same DNA passed on to two individuals.
First, there is a low occurrence of generational inbreeding in humans, which could increase the chances of two individuals sharing the same DNA as is done in lab animals such as mice and rats.
Second, the process of meiosis, which is the production of sex cells in an individual, includes complex mechanisms to guarantee genetic diversity. Every cell in your body has two copies of DNA from each parent except meiotic cells (sex cells), which only contain one set of DNA. This single set of DNA is a mix of genes from both sets of an individual's parents. The mix is somewhat random, thus the genes passed on from two parents are highly unlikely to be the same on any two given conceptions.<br>
Wiki User
∙ 14y ago
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No, two people can never be exactly the same due to their unique genetic make-up, experiences, and perspectives. Each individual is shaped by a combination of factors that make them distinct from others.
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Well im a dr so i can tell you that your son can not have any twins! its just impossible!
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How many people is two twins?
If there are two twins, the answer is 2 If there are two sets of twins the aswer is 4
What are the release dates for Movie Twins - 2006 Mission Impossible 3 DVD 1-20?
Movie Twins - 2006 Mission Impossible 3 DVD 1-20 was released on: USA: 27 September 2006
