Influence of Heredity and Environment
About 6 min · Child Development and Pedagogy · English
Time worked out from the lesson's 312 words at 150 words a minute, plus a minute for each question.
The heredity versus environment debate—often called "nature versus nurture"—is one of the foundational concepts in child development. For PSTET, this topic tests whether you understand that a child's growth is never the result of genes alone or surroundings alone; it is always an interaction of both. Questions may ask you to identify which traits are more influenced by heredity, which by environment, or how family, school, and community shape development.
Key ideas
- Heredity (Nature) refers to the biological transmission of traits from parents to offspring through genes. It sets the potential or upper limit for physical and some cognitive traits.
- Environment (Nurture) includes all external influences after conception—family, school, peers, community, nutrition, and socio-economic conditions—that shape how hereditary potential is expressed.
- Interaction Principle: Development is always H × E (heredity multiplied by environment), not H + E. A child with high genetic potential for intelligence may not develop it without a stimulating environment.
- Maturation vs Learning: Maturation is the unfolding of genetically programmed changes (e.g., puberty); learning is the change in behaviour due to experience. Both work together.
- Critical and Sensitive Periods: Certain environmental inputs have maximum impact during specific developmental windows (e.g., language acquisition before age 6–7).
Quick reference
- Heredity = potential; Environment = actualisation.
- Development = Heredity × Environment (interaction, not addition).
- Family provides first socialisation; school extends it; community reinforces it.
- Critical periods: early childhood is most sensitive to environmental input.
- NCF 2005 stance: reject labelling children as "incapable" based on heredity—every child can learn with appropriate support.
Check yourself: 3 questions
1. Which of the following characteristics is primarily determined by heredity?
2. Intelligence is influenced by:
3. Studies on identical twins raised apart are most useful for understanding the relative influence of:
This lesson is cut from the topic's note, not rewritten. Fact-checked on 21 Oct 2026: an AI-assisted check of this note against cited sources; the errors it found were corrected that day. Some errors may remain. The questions are from Shishya's validated question bank.
Read the full noteFlashcards for this topic
Saves this lesson and its 3 questions in this browser on this phone. No sign-in; nothing about you is saved or sent. A saved copy is not updated until you save it again. Parts that load from the server when you use them (the AI tutor, adaptive practice, sign-in) still need a connection.