The present invention provides a method for determining hair inductive properties of a composition comprising injecting a composition comprising dissociated dermal cells and epidermal cells into skin of a mammal and determining whether at least one hair follicle forms. The work reported here makes several new contributions to the current literature on microfabricated RDMs. The adder circuit also includes a plurality of multiplexers to receive the carry signals and the conditional sums and to provide an output based on the input signals. The wordline activation signal is based on enable data captured by a first transparent latching circuit and the wordline timing signal generated within the subarray.