The strongest support for the theory that personality is heavily influenced by genetics is provided by strong personality similarity between:
The strongest support for the theory that personality is heavily influenced by genetics is provided by strong personality similarity between:
Options:
(a) Identical twins reared together
(b) Identical twins reared apart
(c) Fraternal twins reared together
(d) Non-twins reared together
✅ Correct Option: (b) Identical twins reared apart
Explanation:
Personality is influenced by both genetics and environment. Studies of identical twins reared apart provide the strongest evidence for genetic influence because they share 100% of their genes but grow up in different environments. Despite environmental differences, many personality traits show remarkable similarity, highlighting heredity’s role. Fraternal twins or non-twin siblings reared together share fewer genes, so their personality similarities are lower. PPSC exams often test knowledge of genetics and personality in educational psychology contexts.
10 Related PPSC Facts:
Identical twins = 100% shared genes Reared apart = controls environmental factors High similarity indicates strong genetic influence Fraternal twins = 50% shared genes Non-twin siblings = lower similarity Personality influenced by both genes & environment Heredity explains part of intelligence and traits Used in twin studies in psychology Evidence for nature vs. nurture debate Frequently tested in PPSC pedagogy