Problem: Check all that apply regarding the mechanisms of action of steroid hormones. Check All That Apply Receptor proteins are located in either the cytoplasm or the nucleus.Receptor proteins are located in either the cytoplasm or the nucleus. Receptor proteins are located in the nucleus only.Receptor proteins are located in the nucleus only. The two receptors form a heterodimer.The two receptors form a heterodimer. The two hormone receptors on their DNA half-sites form a homodimer.The two hormone receptors on their DNA half-sites form a homodimer. The genomic action takes at least 30 minutes, and involves stimulating genetic transcription. Need Assignment Help?