Method for producing stem cell clones suitable for induction of differentiation into somatic cells

The present invention is a method for producing stem cell clones, wherein the method includes (i) a step for introducing into stem cells an exogenous gene associated with induction of differentiation into somatic cells, (ii) a step for inducing the stem cells into which the exogenous gene was introduced to differentiate into somatic cells, (iii) a step for dedifferentiating the somatic cells that have been induced to differentiate, and (iv) a step for isolating stem cells incorporating the exogenous gene into the chromosome from the stem cell colony formed in step (iii).