Personality  in the field of organizational behavior, is the aggregate of a person’s feelings, thinking, behaviors and responses to different situations and people. Every person has a different personality and there are a lot of factors which contribute to that personality. We call them the ‘determinants of personality’ or the ‘factors of personality’.

These determinants and factors of personality can belong to very different categories that is the heredity and environmental factors. Many psychologists believe that the environment, in which an individual lives in, forms his personality. On the other hand, some psychologists used to debate that personality is pre-determined at the time of birth – which means that it is hereditary.  Actually, it appears that both the environmental and heredity factors contribute as the important determinants and factors of personality.

Heridity refers to the genetic inheritence received by every individual at the time of conception. The origin of every human life can be traced to a single cell called zygote. It is formed by the union of sperm and ovum. Pearson H (2006).pp. 398

The heredity factors play a very important role as the major determinants and factors of personality. Heredity factors are the ones that are determined at the time of conception. These factors not only affect the physical features of a person but the intelligence level attentiveness, gender temperament various inherited diseases and energy level all get affected by them.

The example of how heredity factor determine such a huge and significant part of an individual personality can easly be obseved in children. Many children behave exactly how their parents do. Similary, twin siblings also have a lot thing in common.

According to Douglass and Holland Environment includes all extrinsic forces influences and conditions which affect the life, nature, behaviour, the growth, development and maturation of living organism.

Environment means the society, the fields of society and even the whole world. But here, the word environment is restricted to mean the environment within mothers womb and just born, as well as the environment around the individual. Briley, D. A., Tucker-Drob, E. M. (2014).  140 

Like heredity, environment also has been found to play a very important role in determining the behaviour and personality development of an individual. The environment influences are those which act upon the organism at the earlier stages of development, i.e before and also after birth.

With above discussion environment tends to be the strongest impact on personality;

 Family

The family provides the single most important environmental influence on a child’s personality development. It is within the family that the infant first learns to love and trust others. This sense of trust is gained in the early years through the love and consistent responses of the baby’s caregiver.
SWAI JOAN 
BAPRM 42676