Class 12 Biology MCQ Solutions PDF Notes English Medium 2027
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If you are a Higher Secondary Second Year (Class 12) student studying in the English medium, this carefully prepared collection of Class 12 Biology MCQ Solutions PDF Notes English Medium is designed especially for you. Along with chapter-wise questions and answers, it provides clear, simple, and well-explained solutions to important and probable additional questions for examinations. The guide is thoughtfully arranged to ensure over 90% common question coverage, helping you prepare with confidence.
Description
Class 12 Biology MCQ Solutions PDF Notes English Medium 2027
(Biology)
(Medium: English)
As per the New Syllabus of AHSEC 2026-27
Each PDF Guide Includes:
- Lesson-wise (textual) questions and answers for every chapter
- Additional questions and answers for every chapter
- Long-answer questions for every chapter
- Short-answer questions for every chapter
- Very short-answer questions for every chapter
- All answers are presented in simple and easy language
- All materials are available in colorful, high-definition (HD) PDF format
Unit VI: Reproduction
Chapter 1: Reproduction in Organisms
| No. | Topics |
|---|---|
| 1 | Life Span |
| 2 | Reproduction |
| 3 | Asexual Reproduction |
| 4 | Sexual Reproduction |
| 5 | Reproductive Phases |
Chapter 2: Sexual Reproduction in Flowering Plants
| No. | Topics |
|---|---|
| 1 | Flower Structure |
| 2 | Pre-fertilisation: Structures and Events |
| 3 | Microsporogenesis |
| 4 | Megasporogenesis |
| 5 | Pollination |
| 6 | Fertilisation and Double Fertilisation |
| 7 | Post-fertilisation: Structures and Events |
| 8 | Seed and Fruit Formation |
| 9 | Apomixis and Polyembryony |
Chapter 3: Human Reproduction
| No. | Topics |
|---|---|
| 1 | Male Reproductive System |
| 2 | Female Reproductive System |
| 3 | Gametogenesis |
| 4 | Menstrual Cycle |
| 5 | Fertilisation and Implantation |
| 6 | Pregnancy and Embryonic Development |
| 7 | Parturition and Lactation |
Chapter 4: Reproductive Health
| No. | Topics |
|---|---|
| 1 | Reproductive Health – Problems and Strategies |
| 2 | Population Explosion and Birth Control |
| 3 | Medical Termination of Pregnancy (MTP) |
| 4 | Sexually Transmitted Infections (STIs) |
| 5 | Infertility and Assisted Reproductive Technologies |
Unit VII: Genetics and Evolution
| No. | Topics |
|---|---|
| 1 | Mendel’s Laws of Inheritance |
| 2 | Inheritance of One Gene and Two Genes |
| 3 | Chromosomal Theory of Inheritance |
| 4 | Linkage and Recombination |
| 5 | Sex Determination |
| 6 | Mutations |
| 7 | Genetic Disorders |
Chapter 6: Molecular Basis of Inheritance
| No. | Topics |
|---|---|
| 1 | DNA as Genetic Material |
| 2 | Structure of DNA and RNA |
| 3 | DNA Replication |
| 4 | Transcription |
| 5 | Genetic Code |
| 6 | Translation |
| 7 | Gene Regulation |
| 8 | Human Genome Project |
| 9 | DNA Fingerprinting |
Chapter 7: Evolution
| No. | Topics |
|---|---|
| 1 | Origin of Life |
| 2 | Evidences for Evolution |
| 3 | Theories of Evolution |
| 4 | Darwin’s Theory |
| 5 | Modern Synthetic Theory |
| 6 | Hardy-Weinberg Principle |
| 7 | Adaptive Radiation |
Unit VIII: Biology in Human Welfare
| No. | Topics |
|---|---|
| 1 | Common Diseases in Humans |
| 2 | Immunity |
| 3 | Vaccines |
| 4 | Cancer |
| 5 | AIDS |
| 6 | Drug and Alcohol Abuse |
Chapter 9: Strategies for Enhancement in Food Production
| No. | Topics |
|---|---|
| 1 | Animal Husbandry |
| 2 | Plant Breeding |
| 3 | Single Cell Protein (SCP) |
| 4 | Tissue Culture |
Chapter 10: Microbes in Human Welfare
| No. | Topics |
|---|---|
| 1 | Microbes in Household Products |
| 2 | Microbes in Industrial Products |
| 3 | Microbes in Sewage Treatment |
| 4 | Biogas Production |
| 5 | Biocontrol Agents |
| 6 | Biofertilisers |
Unit IX: Biotechnology
Chapter 11: Biotechnology: Principles and Processes
| No. | Topics |
|---|---|
| 1 | Genetic Engineering |
| 2 | Tools of Recombinant DNA Technology |
| 3 | Cloning Vectors |
| 4 | Polymerase Chain Reaction (PCR) |
| 5 | Gel Electrophoresis |
Chapter 12: Biotechnology and its Applications
| No. | Topics |
|---|---|
| 1 | Biotechnological Applications in Agriculture |
| 2 | Applications in Medicine |
| 3 | Transgenic Animals |
| 4 | Ethical Issues in Biotechnology |
Unit X: Ecology
Chapter 13: Organisms and Populations
| No. | Topics |
|---|---|
| 1 | Organisms and Environment |
| 2 | Population Attributes |
| 3 | Population Growth |
| 4 | Population Interactions |
| 5 | Adaptations |
Chapter 14: Ecosystem
| No. | Topics |
|---|---|
| 1 | Structure and Function of Ecosystem |
| 2 | Productivity |
| 3 | Decomposition |
| 4 | Energy Flow |
| 5 | Ecological Pyramids |
| 6 | Nutrient Cycling |
Chapter 15: Biodiversity and Conservation
| No. | Topics |
|---|---|
| 1 | Biodiversity and its Levels |
| 2 | Patterns of Biodiversity |
| 3 | Loss of Biodiversity |
| 4 | Conservation of Biodiversity |
Chapter 16: Environmental Issues
| No. | Topics |
|---|---|
| 1 | Air Pollution |
| 2 | Water Pollution |
| 3 | Soil Pollution |
| 4 | Solid Waste Management |
| 5 | Climate Change |
| 6 | Ozone Depletion |
| 7 | Deforestation |
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