Concept:Heredity is the biological transfer of genetic traits from parents to offspring. It influences certain aspects but not all personal attributes.
Explanation:Heredity directly impacts intelligence through genetic factors like cognitive ability and IQ.
Personality is also affected by inherited traits such as extroversion and emotional stability.
However, character is mainly shaped by environment, experiences, and learning, not solely by heredity.
Thus, among the given options, the effect on character is not a direct effect of heredity.
Answer:B. Effect on character