(i) two persons are said to be related to each other by full blood when they are descended from a common ancestor by the same wife, and by half blood when they are descended from a common ancestor but by different wives;

(ii) two persons are said to be related to each other by uterine blood when they are descended from a common ancestress but by different husbands; Explanation.- In this clause" ancestor" includes the father and" ancestress" the mother;