Strands #247 “More Than Just...
Quizzes & Puzzles1 min ago
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For more on marking an answer as the "Best Answer", please visit our FAQ.Eddie 51 is right
However, once the egg has divided into two it is not impossible for a mutation to occur in a cell which is then propagated and would cause some of the cells not to be identical.
trouble is that mutation rates are around 10 -5
in which case you would expect this effect to occur and be mnportant around once every ten thousand pair of identical twins.....