Causes of genetic variation.
like to know what is the cause of Benign Polymorphism of the repeating
was the result of some DNA testing my neurologist had done.
you very much for your question.
variation can arise from random mistakes made when the DNA is being
reproduced. Environmental factors, such as exposure to toxins, can
influence the number of changes to the DNA sequence.
whole organism level, what's happening is you are getting this variation
which arises just through random mistakes in that organism copying
its DNA, or it gets promoted by things like environmental toxins,
or smoking is a factor that contributes to heightened rates of mutation,
and that's actually going to alter the DNA of a particular cell.
comes down to changes in the sequence of your DNA. And this can be
things like deletions, it can be extra bits of DNA popping there,
or just changes in the bases that are there, so from a G [guanosine]
to a C [cysteine], or things like that.
happens is, when you get those changes in your genes, that translates
into a change in the sequence of the protein that is encoded by that
gene. So it's kind of like if you translated a sentence into code
and then you randomly swapped a few letters and then translated it
back you wouldn't have the same message that you started with.
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