The diagram shows a potato tuber that developed from the stem of a parent potato plant. Three shoots are starting to grow from the tuber.
How do the genotypes of the shoots compare with the genotypes of the tuber and of the parent?

1 )
They are all different.
They are all identical.
3 )
The shoots are identical to each other, but are different from the tuber and the parent.
4 )
The shoots are identical to the tuber, but are different from the parent.
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