-Medial: Towards the mid-line, Middle, Away from the side. ~Example: The little finger it medial to the thumb.-Lateral: Toward the side, Away from the mid-line. ~Example: Anatomical position, Thumb is lateral to little finger.-Proximal: Structures closer to the center of the body. ~Example: Hip is proximal to the knee.-Distal:Structures further away from center of the body. ~Example: Knee is distal to the hip.-Anterior: Structures in front.-Posterior: Structures behind.-Cephalad/Cephalic: Adverbs meaning towards the head. ~Example: Cranial is the adjective, meaning The Skull.-Caudad: Adverb meaning towards the tail/posterior. ~Example: Caudal is the adjective, meaning The Hindquarters.-Superior: Above, or closer to the head.-Inferior:Below, or closer to the feet.

1.
-Medial: Towards the mid-line, Middle, Away from the side.
~Example: The little finger it medial to the thumb.
-Lateral: Toward the side, Away from the mid-line.
~Example: Anatomical position, Thumb is lateral to little finger.
-Proximal: Structures closer to the center of the body.
~Example: Hip is proximal to the knee.
-Distal:Structures further away from center of the body.
~Example: Knee is distal to the hip.
-Anterior: Structures in front.
-Posterior: Structures behind.
-Cephalad/Cephalic: Adverbs meaning towards the head.
~Example: Cranial is the adjective, meaning The Skull.
-Caudad: Adverb meaning towards the tail/posterior.
~Example: Caudal is the adjective, meaning The Hindquarters.
-Superior: Above, or closer to the head.
-Inferior:Below, or closer to the feet.

DNA replication
Terms of Direction
Enzymes
basic mechanism