PPSC Past Paper Assistant in S&GAD Department, 2018 Solved MCQs, General Knowledge MCQs, PPSC Solved Past Papers MCQsA gene is a? Posted on June 16, 2021 by Rana TahirA. Sleep inducing drug B. Unit of heredity C. Kind of Vitamin D. Type of body cellShare this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)