How have your genes and enviornment interacted to produce the tempermental characteristics and self concept that you have today? Solution Man’s behavior is influenced by two forces, heredity and environment. The biological or psychological characteristics which are transmitted by the parents to their off-springs are known as heredity. Heredity is a biological process of transmission of certain traits of behavior of the parents to their children. Heredity traits are innate. The essential characteristics inherited by all human beings are physical structure, reflexes, innate drives, intelligence, and temperament. Personality is a set of individual differences that are affected by the development of an individual: values, attitudes, personal memories, social relationships, habits, and skills. \"Personality trait\" refers to enduring personal characteristics that are revealed in a particular pattern of behavior in a variety of situations. During the course of development, the genotype interacts with the environment in complex ways to produce the phenotype. It is the phenotypic expression of individual physical and behavioral characteristics Children seem to have distinct temperaments almost from birth. Some are cheerful and easy to care for, whereas others are fussy and demanding. Researchers have identified many temperamental styles that are including general activity level, adaptability, persistence, adventurousness, shyness, inhibitedness, irritability, and distractibility. Most psychologists agree that such temperamental differences are biologically based and have genetic origins One influential environmental factor is the parenting style that parents and other primary caregivers use in raising children. Authoritative parents provide a loving and supportive home, hold high expectations and standards for performance, explain why behaviors are (or) are not acceptable, enforce household rules consistently, include children in decision making and provide age-appropriate opportunities for autonomy. Children from authoritative homes tend to be happy, energetic, self-confident, and likeable. They make friends easily and show self-control and concern for the rights and needs of others. Children of authoritative parents appear well adjusted, in part, because their behavior fits well, they listen respectfully to others, can follow rules by the time they reach school age, are relatively independent and self-regulating, and strive for academic achievement A child’s cultural environment also influences personality development more directly by encouraging (i.e., socializing) certain kinds of behaviors. Eg: Many children in China are raised to be shy, whereas many in Zambia and the United States are raised to smile and be outgoing Nature and nurture interact in numerous ways to shape children’s personalities. For instance, children who are temperamentally energetic and adventuresome will seek out a wider variety of experiences than those who are quiet and re.