3 Hitchhiker’s ThumbStraight thumbs (dominant trait) can be seen as nearly a straight line and may contain a slight arch when viewed from the side as in the illustrations. Curved thumbs (recessive trait) can be seen as part of a circle.
4 Ear LobesFree earlobes (dominant trait) hang below the point of attachment to the head. Attached ear lobes (recessive trait) are attached directly to the side of the head.
12 Clasp hands left over right (dominant trait)Right over left(recessive trait).
13 Six FingersSix Fingers(dominant trait)5 fingers (recessive trait).
14 Bent Pinkies Bent pinky (dominant trait) Straight pinky (recessive trait):Hold your hands together as if you are covering your face.If the tips of the pinkies (or baby fingers) point away from one another, the pinkies are bent (recessive trait).
15 Longer Big Toe Longer Big toe (dominant trait) Longer 2nd toe(recessive trait).