Assertion: Insulin forms hormone receptor complex which regulate gene expression.
Reason: Insulin is a peptide hormone which can easily pass cell membrane to interact with hormone-receptor complex.

Answer

C

Explanation

Insulin is a protein hormone which is water soluble. Water so,luble hormone require extracellular receptors that generatre second messengers for carrying out their activity. Insulin binds to its specific receptor molecule located on the plasma membrane to form the hormone receptor complex, (HRC) which in turn generate second messengers that regulate cellular mechanism. Water soluble hormones (a.g., amono aci dderivatives, peptides and protein hormones) do not enter the target cell.