Biology — Stream SX/SB
Molecular biology, evolution, biotechnology, and advanced ecology for Class 12 / college
Key Concepts
- Molecular genetics and inheritance
- Human physiology across the organ systems
- Ecology and ecosystems
- Biotechnology and its applications
Important Formulae
| Hardy–Weinberg | p² + 2pq + q² = 1; p + q = 1 |
| Dihybrid ratio | AaBb × AaBb ⇒ 9 : 3 : 3 : 1 |
Quick Tips
- Practise genetics problems — they are common and scoring.
- Connect physiology topics (e.g. how systems work together) for applied questions.
Sample Practice Questions
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The phenotypic ratio of a monohybrid cross (Aa × Aa) is:
Show answer
Answer: 3:1
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The structural and functional unit of the kidney is the:
Show answer
Answer: Nephron
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In DNA, the base adenine pairs with:
Show answer
Answer: Thymine
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Approximately what percentage of energy is transferred between successive trophic levels?
Show answer
Answer: 10%
Practice Questions
Practise KVPY questions on Biology — Stream SX/SB. Answers are revealed after each question.
Start Practice →Frequently Asked Questions
What are the key concepts in Biology — Stream SX/SB for KVPY?
Molecular genetics and inheritance; Human physiology across the organ systems; Ecology and ecosystems; Biotechnology and its applications.
Which formulae are important for Biology — Stream SX/SB in KVPY?
Hardy–Weinberg: p² + 2pq + q² = 1; p + q = 1; Dihybrid ratio: AaBb × AaBb ⇒ 9 : 3 : 3 : 1.
How can I practise KVPY Biology — Stream SX/SB questions for free?
Practise free KVPY Biology — Stream SX/SB questions with instant answers and explanations on Safe Learning for Kids — no sign-up required.