refers to the special bond that develops between an infant and his or her primary caregivers and provides the infant with emotional security.

Attachment Bond

Explanation:

Attachment Bond is defined as the bond that forms a strong relationship between a child and a primary care giver(E.g The Mother)

It is called the sensory-motor stage of a child and it takes place between the ages of 0-24months of a child.It is the age which a child experiences Object Permanence and Object Absence(Example:An infant/child at this age who is always carried by the mother will feel the absence of his mother when she is absent.By this,the child is specially bonded to his mother and tends to know when she is present/absent.It is also the age of Egocentrism.

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.