It is a blood group. People whose blood contains this group are referred to as being Rhesus positive. Those who lack it are called Rhesus negative.
Check Also
श्री डुल्या मारुति मंदिर, गणेशपेठ, पुणे, महाराष्ट्र
श्री डुल्या मारुति मंदिर: आज हम आपको पुणे के गणेशपेठ में स्थापित हनुमान मंदिर के बारे …