Answer:
a steroid hormone-This is genomic pathways.
Explanation
Due to their like -dissolve -like forms steroid  hormone  are transported free across the phophoslipid membranes. These hormones on reaching the cytoplasm  may undergo enzyme mediated alteration, and later binded with specific steroid hormone receptors.
In order to enter the cell nucleus , some of these receptors joined together as a sub unit, called a a dimer.
It is this Dimer  which exist as  one functional DNA binding unit that enters the cell nucleus. In the latter the steroid-receptor ligand complex  binds with a specific DNA sequence to bring about transcription of the  targeted gene;to complete genomic pathways.
