Many of the proteins used to induce differentiation in human iPS cells also work to differentiate mouse iPS cells. Why is this ability of a human protein to work in mouse cells not a surprise?
a. Because many important regulators in development are conserved across species.
b.Because many important regulators in development become different but perform the same function.
c. Because many important regulators in development are able to transform under specific influence of a living organism.
d. Because many important regulators in development are not conserved across species.