21.
Which of the following is a significant development in the process of evolution that differentiates human being from other species

22.
The field of behaviour genetics combines the method of genetics and . . . . . . . . to study the inheritance of behaviour characteristics.

25.
Match List-I with List-II and select the correct answer:
List-I (Ages) List-II (Psychological crises)
A. Birth-First Year 1. Intimacy and solidarity vs. isolation
B. Adolescence 2. Trust vs. mistrust
C. Early adulthood 3. Identity and repudiation vs identity diffusion

26.
Match List-I (Main feature) with List-II (Name of the theory) and select the correct answer:
List-I List-II
A. Grouping people into discrete behavioural categories 1. Social Learning Theory
B. Relative difference between one person and another on a Continuous dimensions 2. Psychoanalysis
C. Emphasis on the Unconscious motives 3. Trait Theories
D. Analysis of the Unconscious motives that direct behaviour 4. Type Theories

28.
Research comparing groups of persons of different ages in order to determine how certain aspects of behaviour or cognition change with age is known as